US20030070582A1 - Ink composition, recording medium, ink jet recording method, and printed matter - Google Patents
Ink composition, recording medium, ink jet recording method, and printed matter Download PDFInfo
- Publication number
- US20030070582A1 US20030070582A1 US10/103,651 US10365102A US2003070582A1 US 20030070582 A1 US20030070582 A1 US 20030070582A1 US 10365102 A US10365102 A US 10365102A US 2003070582 A1 US2003070582 A1 US 2003070582A1
- Authority
- US
- United States
- Prior art keywords
- group
- ink composition
- compound
- recording medium
- general formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 147
- 238000000034 method Methods 0.000 title claims abstract description 60
- 150000001875 compounds Chemical class 0.000 claims abstract description 156
- 239000013585 weight reducing agent Substances 0.000 claims abstract description 43
- -1 oxy radical Chemical group 0.000 claims description 57
- 125000000217 alkyl group Chemical group 0.000 claims description 50
- 150000003839 salts Chemical class 0.000 claims description 41
- 125000003118 aryl group Chemical group 0.000 claims description 40
- 229940126062 Compound A Drugs 0.000 claims description 31
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 239000001257 hydrogen Substances 0.000 claims description 29
- 229910052739 hydrogen Inorganic materials 0.000 claims description 29
- 239000003086 colorant Substances 0.000 claims description 20
- 150000002431 hydrogen Chemical group 0.000 claims description 20
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical group OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 18
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 18
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 14
- 125000004429 atom Chemical group 0.000 claims description 13
- 229910052755 nonmetal Inorganic materials 0.000 claims description 13
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 12
- 125000002252 acyl group Chemical group 0.000 claims description 10
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 9
- 125000004423 acyloxy group Chemical group 0.000 claims description 9
- 229910052783 alkali metal Inorganic materials 0.000 claims description 9
- 150000001340 alkali metals Chemical class 0.000 claims description 9
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 9
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 9
- 125000003342 alkenyl group Chemical group 0.000 claims description 9
- 125000003545 alkoxy group Chemical group 0.000 claims description 9
- 125000000304 alkynyl group Chemical group 0.000 claims description 9
- 125000004104 aryloxy group Chemical group 0.000 claims description 9
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 9
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 9
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 7
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- 239000003906 humectant Substances 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 229910006074 SO2NH2 Inorganic materials 0.000 claims description 5
- 229910006069 SO3H Inorganic materials 0.000 claims description 5
- 125000003277 amino group Chemical group 0.000 claims description 5
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 claims description 5
- 125000004185 ester group Chemical group 0.000 claims description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 5
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 4
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical group [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims description 4
- 159000000000 sodium salts Chemical class 0.000 claims description 4
- 238000004383 yellowing Methods 0.000 abstract description 67
- 239000000976 ink Substances 0.000 description 176
- 239000000049 pigment Substances 0.000 description 72
- 239000002609 medium Substances 0.000 description 62
- 238000012360 testing method Methods 0.000 description 37
- 230000002349 favourable effect Effects 0.000 description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 12
- 239000000975 dye Substances 0.000 description 12
- 239000004611 light stabiliser Substances 0.000 description 11
- 229920000642 polymer Polymers 0.000 description 11
- 0 *N(C([1*])[2*])C([3*])[4*] Chemical compound *N(C([1*])[2*])C([3*])[4*] 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 150000002989 phenols Chemical class 0.000 description 10
- 238000000576 coating method Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 239000002250 absorbent Substances 0.000 description 8
- 230000002745 absorbent Effects 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 8
- 229920001577 copolymer Polymers 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 7
- 241000557626 Corvus corax Species 0.000 description 6
- 241000721047 Danaus plexippus Species 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000000654 additive Substances 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 238000001035 drying Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- ALQSHHUCVQOPAS-UHFFFAOYSA-N Pentane-1,5-diol Chemical compound OCCCCCO ALQSHHUCVQOPAS-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 239000012973 diazabicyclooctane Substances 0.000 description 4
- 238000006471 dimerization reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000003755 preservative agent Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 4
- MKDOHQRUGQKRFK-UHFFFAOYSA-N 1-butoxybutane;2-[2-(2-hydroxyethoxy)ethoxy]ethanol Chemical compound CCCCOCCCC.OCCOCCOCCO MKDOHQRUGQKRFK-UHFFFAOYSA-N 0.000 description 3
- RZIYMHYVDYPRHH-UHFFFAOYSA-N 1-butoxybutane;propane-1,2-diol Chemical compound CC(O)CO.CCCCOCCCC RZIYMHYVDYPRHH-UHFFFAOYSA-N 0.000 description 3
- SJRJJKPEHAURKC-UHFFFAOYSA-N N-Methylmorpholine Chemical compound CN1CCOCC1 SJRJJKPEHAURKC-UHFFFAOYSA-N 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical compound C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229940125782 compound 2 Drugs 0.000 description 3
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 3
- YIOJGTBNHQAVBO-UHFFFAOYSA-N dimethyl-bis(prop-2-enyl)azanium Chemical compound C=CC[N+](C)(C)CC=C YIOJGTBNHQAVBO-UHFFFAOYSA-N 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000001023 inorganic pigment Substances 0.000 description 3
- 229960004011 methenamine Drugs 0.000 description 3
- 239000012860 organic pigment Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 230000002335 preservative effect Effects 0.000 description 3
- 238000001454 recorded image Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 150000003512 tertiary amines Chemical class 0.000 description 3
- NCPXQVVMIXIKTN-UHFFFAOYSA-N trisodium;phosphite Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])[O-] NCPXQVVMIXIKTN-UHFFFAOYSA-N 0.000 description 3
- FTTATHOUSOIFOQ-UHFFFAOYSA-N 1,2,3,4,6,7,8,8a-octahydropyrrolo[1,2-a]pyrazine Chemical compound C1NCCN2CCCC21 FTTATHOUSOIFOQ-UHFFFAOYSA-N 0.000 description 2
- PAMIQIKDUOTOBW-UHFFFAOYSA-N 1-methylpiperidine Chemical compound CN1CCCCC1 PAMIQIKDUOTOBW-UHFFFAOYSA-N 0.000 description 2
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 2
- BSKHPKMHTQYZBB-UHFFFAOYSA-N 2-methylpyridine Chemical compound CC1=CC=CC=N1 BSKHPKMHTQYZBB-UHFFFAOYSA-N 0.000 description 2
- ITQTTZVARXURQS-UHFFFAOYSA-N 3-methylpyridine Chemical compound CC1=CC=CN=C1 ITQTTZVARXURQS-UHFFFAOYSA-N 0.000 description 2
- DTBDAFLSBDGPEA-UHFFFAOYSA-N 3-methylquinoline Chemical compound C1=CC=CC2=CC(C)=CN=C21 DTBDAFLSBDGPEA-UHFFFAOYSA-N 0.000 description 2
- GRFNBEZIAWKNCO-UHFFFAOYSA-N 3-pyridinol Chemical compound OC1=CC=CN=C1 GRFNBEZIAWKNCO-UHFFFAOYSA-N 0.000 description 2
- UZFMOKQJFYMBGY-UHFFFAOYSA-N 4-hydroxy-TEMPO Chemical group CC1(C)CC(O)CC(C)(C)N1[O] UZFMOKQJFYMBGY-UHFFFAOYSA-N 0.000 description 2
- HNJRBCJUHORNHV-UHFFFAOYSA-N 5-[(4-hydroxyphenyl)diazenyl]-2-[2-[4-[(4-hydroxyphenyl)diazenyl]-2-sulfophenyl]ethenyl]benzenesulfonic acid Chemical compound C1=CC(O)=CC=C1N=NC(C=C1S(O)(=O)=O)=CC=C1C=CC1=CC=C(N=NC=2C=CC(O)=CC=2)C=C1S(O)(=O)=O HNJRBCJUHORNHV-UHFFFAOYSA-N 0.000 description 2
- VDBJCDWTNCKRTF-UHFFFAOYSA-N 6'-hydroxyspiro[2-benzofuran-3,9'-9ah-xanthene]-1,3'-dione Chemical compound O1C(=O)C2=CC=CC=C2C21C1C=CC(=O)C=C1OC1=CC(O)=CC=C21 VDBJCDWTNCKRTF-UHFFFAOYSA-N 0.000 description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
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- 229920002873 Polyethylenimine Polymers 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
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- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 2
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- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 235000019241 carbon black Nutrition 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
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- 229940125773 compound 10 Drugs 0.000 description 2
- GMKDNCQTOAHUQG-UHFFFAOYSA-L dilithium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane Chemical compound [Li+].[Li+].[O-]S([O-])(=O)=S GMKDNCQTOAHUQG-UHFFFAOYSA-L 0.000 description 2
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- 125000000524 functional group Chemical group 0.000 description 2
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- NOUWNNABOUGTDQ-UHFFFAOYSA-N octane Chemical compound CCCCCCC[CH2+] NOUWNNABOUGTDQ-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001782 photodegradation Methods 0.000 description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 2
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- CRGPNLUFHHUKCM-UHFFFAOYSA-M potassium phosphinate Chemical compound [K+].[O-]P=O CRGPNLUFHHUKCM-UHFFFAOYSA-M 0.000 description 2
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- 238000002360 preparation method Methods 0.000 description 2
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- MHXFWEJMQVIWDH-UHFFFAOYSA-N 1-amino-4-hydroxy-2-phenoxyanthracene-9,10-dione Chemical compound C1=C(O)C=2C(=O)C3=CC=CC=C3C(=O)C=2C(N)=C1OC1=CC=CC=C1 MHXFWEJMQVIWDH-UHFFFAOYSA-N 0.000 description 1
- AVFZOVWCLRSYKC-UHFFFAOYSA-N 1-methylpyrrolidine Chemical compound CN1CCCC1 AVFZOVWCLRSYKC-UHFFFAOYSA-N 0.000 description 1
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- QWIGSMCPAKBYLY-UHFFFAOYSA-O 2,4-dimethoxy-n-[2-(1,3,3-trimethylindol-1-ium-2-yl)ethenyl]aniline Chemical compound COC1=CC(OC)=CC=C1NC=CC1=[N+](C)C2=CC=CC=C2C1(C)C QWIGSMCPAKBYLY-UHFFFAOYSA-O 0.000 description 1
- FWLHAQYOFMQTHQ-UHFFFAOYSA-N 2-N-[8-[[8-(4-aminoanilino)-10-phenylphenazin-10-ium-2-yl]amino]-10-phenylphenazin-10-ium-2-yl]-8-N,10-diphenylphenazin-10-ium-2,8-diamine hydroxy-oxido-dioxochromium Chemical compound O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.O[Cr]([O-])(=O)=O.Nc1ccc(Nc2ccc3nc4ccc(Nc5ccc6nc7ccc(Nc8ccc9nc%10ccc(Nc%11ccccc%11)cc%10[n+](-c%10ccccc%10)c9c8)cc7[n+](-c7ccccc7)c6c5)cc4[n+](-c4ccccc4)c3c2)cc1 FWLHAQYOFMQTHQ-UHFFFAOYSA-N 0.000 description 1
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- 239000007789 gas Substances 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 150000002314 glycerols Chemical class 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052621 halloysite Inorganic materials 0.000 description 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- UHOKSCJSTAHBSO-UHFFFAOYSA-N indanthrone blue Chemical compound C1=CC=C2C(=O)C3=CC=C4NC5=C6C(=O)C7=CC=CC=C7C(=O)C6=CC=C5NC4=C3C(=O)C2=C1 UHOKSCJSTAHBSO-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229940079865 intestinal antiinfectives imidazole derivative Drugs 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- PXZQEOJJUGGUIB-UHFFFAOYSA-N isoindolin-1-one Chemical compound C1=CC=C2C(=O)NCC2=C1 PXZQEOJJUGGUIB-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 235000010187 litholrubine BK Nutrition 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000845 maltitol Substances 0.000 description 1
- 235000010449 maltitol Nutrition 0.000 description 1
- VQHSOMBJVWLPSR-WUJBLJFYSA-N maltitol Chemical compound OC[C@H](O)[C@@H](O)[C@@H]([C@H](O)CO)O[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O VQHSOMBJVWLPSR-WUJBLJFYSA-N 0.000 description 1
- 229940035436 maltitol Drugs 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003146 methacrylic ester copolymer Polymers 0.000 description 1
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 1
- LPQMOFIXRVVOSF-UHFFFAOYSA-M methyl sulfate;n-methyl-n-[(1,3,3-trimethylindol-1-ium-2-yl)methylideneamino]aniline Chemical compound COS([O-])(=O)=O.C[N+]=1C2=CC=CC=C2C(C)(C)C=1/C=N/N(C)C1=CC=CC=C1 LPQMOFIXRVVOSF-UHFFFAOYSA-M 0.000 description 1
- 125000004170 methylsulfonyl group Chemical group [H]C([H])([H])S(*)(=O)=O 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- MXHTZQSKTCCMFG-UHFFFAOYSA-N n,n-dibenzyl-1-phenylmethanamine Chemical compound C=1C=CC=CC=1CN(CC=1C=CC=CC=1)CC1=CC=CC=C1 MXHTZQSKTCCMFG-UHFFFAOYSA-N 0.000 description 1
- ZWRDBWDXRLPESY-UHFFFAOYSA-N n-benzyl-n-ethylethanamine Chemical compound CCN(CC)CC1=CC=CC=C1 ZWRDBWDXRLPESY-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- WGESLFUSXZBFQF-UHFFFAOYSA-N n-methyl-n-prop-2-enylprop-2-en-1-amine Chemical compound C=CCN(C)CC=C WGESLFUSXZBFQF-UHFFFAOYSA-N 0.000 description 1
- 125000006608 n-octyloxy group Chemical group 0.000 description 1
- DYUWTXWIYMHBQS-UHFFFAOYSA-N n-prop-2-enylprop-2-en-1-amine Chemical compound C=CCNCC=C DYUWTXWIYMHBQS-UHFFFAOYSA-N 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 125000000018 nitroso group Chemical group N(=O)* 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001254 oxidized starch Substances 0.000 description 1
- 235000013808 oxidized starch Nutrition 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- DGBWPZSGHAXYGK-UHFFFAOYSA-N perinone Chemical compound C12=NC3=CC=CC=C3N2C(=O)C2=CC=C3C4=C2C1=CC=C4C(=O)N1C2=CC=CC=C2N=C13 DGBWPZSGHAXYGK-UHFFFAOYSA-N 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 125000003170 phenylsulfonyl group Chemical group C1(=CC=CC=C1)S(=O)(=O)* 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 1
- 238000007539 photo-oxidation reaction Methods 0.000 description 1
- 229940110337 pigment blue 1 Drugs 0.000 description 1
- 229940104573 pigment red 5 Drugs 0.000 description 1
- 229940067265 pigment yellow 138 Drugs 0.000 description 1
- 229920000083 poly(allylamine) Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 235000012752 quinoline yellow Nutrition 0.000 description 1
- IZMJMCDDWKSTTK-UHFFFAOYSA-N quinoline yellow Chemical compound C1=CC=CC2=NC(C3C(C4=CC=CC=C4C3=O)=O)=CC=C21 IZMJMCDDWKSTTK-UHFFFAOYSA-N 0.000 description 1
- FZUOVNMHEAPVBW-UHFFFAOYSA-L quinoline yellow ws Chemical compound [Na+].[Na+].O=C1C2=CC=CC=C2C(=O)C1C1=NC2=C(S([O-])(=O)=O)C=C(S(=O)(=O)[O-])C=C2C=C1 FZUOVNMHEAPVBW-UHFFFAOYSA-L 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000985 reactive dye Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- BQHRKYUXVHKLLZ-UHFFFAOYSA-M sodium 7-amino-2-[[4-[(4-aminophenyl)diazenyl]-2-methoxy-5-methylphenyl]diazenyl]-3-sulfonaphthalen-1-olate Chemical compound [Na+].COc1cc(N=Nc2ccc(N)cc2)c(C)cc1N=Nc1c(O)c2cc(N)ccc2cc1S([O-])(=O)=O BQHRKYUXVHKLLZ-UHFFFAOYSA-M 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- AXMCIYLNKNGNOT-UHFFFAOYSA-N sodium;3-[[4-[(4-dimethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)-[4-[ethyl-[(3-sulfophenyl)methyl]amino]phenyl]methyl]-n-ethylanilino]methyl]benzenesulfonate Chemical compound [Na+].C=1C=C(C(=C2C=CC(C=C2)=[N+](C)C)C=2C=CC(=CC=2)N(CC)CC=2C=C(C=CC=2)S([O-])(=O)=O)C=CC=1N(CC)CC1=CC=CC(S(O)(=O)=O)=C1 AXMCIYLNKNGNOT-UHFFFAOYSA-N 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 229940001941 soy protein Drugs 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 239000000988 sulfur dye Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229910002029 synthetic silica gel Inorganic materials 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- AGGKEGLBGGJEBZ-UHFFFAOYSA-N tetramethylenedisulfotetramine Chemical compound C1N(S2(=O)=O)CN3S(=O)(=O)N1CN2C3 AGGKEGLBGGJEBZ-UHFFFAOYSA-N 0.000 description 1
- GMMAPXRGRVJYJY-UHFFFAOYSA-J tetrasodium 4-acetamido-5-hydroxy-6-[[7-sulfonato-4-[(4-sulfonatophenyl)diazenyl]naphthalen-1-yl]diazenyl]naphthalene-1,7-disulfonate Chemical compound [Na+].[Na+].[Na+].[Na+].OC1=C2C(NC(=O)C)=CC=C(S([O-])(=O)=O)C2=CC(S([O-])(=O)=O)=C1N=NC(C1=CC(=CC=C11)S([O-])(=O)=O)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 GMMAPXRGRVJYJY-UHFFFAOYSA-J 0.000 description 1
- MPCYPRXRVWZKGF-UHFFFAOYSA-J tetrasodium 5-amino-3-[[4-[4-[(8-amino-1-hydroxy-3,6-disulfonatonaphthalen-2-yl)diazenyl]phenyl]phenyl]diazenyl]-4-hydroxynaphthalene-2,7-disulfonate Chemical compound [Na+].[Na+].[Na+].[Na+].C1=C(S([O-])(=O)=O)C=C2C=C(S([O-])(=O)=O)C(N=NC3=CC=C(C=C3)C3=CC=C(C=C3)N=NC3=C(C=C4C=C(C=C(C4=C3O)N)S([O-])(=O)=O)S([O-])(=O)=O)=C(O)C2=C1N MPCYPRXRVWZKGF-UHFFFAOYSA-J 0.000 description 1
- SMBAGGHBUKLZPQ-UHFFFAOYSA-J tetrasodium 6-amino-4-hydroxy-3-[[7-sulfinato-4-[(4-sulfonatophenyl)diazenyl]naphthalen-1-yl]diazenyl]naphthalene-2,7-disulfonate Chemical compound C1=CC(=CC=C1N=NC2=C3C=CC(=CC3=C(C=C2)N=NC4=C(C5=CC(=C(C=C5C=C4S(=O)(=O)[O-])S(=O)(=O)[O-])N)O)S(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+] SMBAGGHBUKLZPQ-UHFFFAOYSA-J 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 150000003566 thiocarboxylic acids Chemical class 0.000 description 1
- JOUDBUYBGJYFFP-FOCLMDBBSA-N thioindigo Chemical compound S\1C2=CC=CC=C2C(=O)C/1=C1/C(=O)C2=CC=CC=C2S1 JOUDBUYBGJYFFP-FOCLMDBBSA-N 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 125000005147 toluenesulfonyl group Chemical group C=1(C(=CC=CC1)S(=O)(=O)*)C 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
- VPYJNCGUESNPMV-UHFFFAOYSA-N triallylamine Chemical compound C=CCN(CC=C)CC=C VPYJNCGUESNPMV-UHFFFAOYSA-N 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- ODHXBMXNKOYIBV-UHFFFAOYSA-N triphenylamine Chemical compound C1=CC=CC=C1N(C=1C=CC=CC=1)C1=CC=CC=C1 ODHXBMXNKOYIBV-UHFFFAOYSA-N 0.000 description 1
- YFTHZRPMJXBUME-UHFFFAOYSA-N tripropylamine Chemical compound CCCN(CCC)CCC YFTHZRPMJXBUME-UHFFFAOYSA-N 0.000 description 1
- VRVDFJOCCWSFLI-UHFFFAOYSA-K trisodium 3-[[4-[(6-anilino-1-hydroxy-3-sulfonatonaphthalen-2-yl)diazenyl]-5-methoxy-2-methylphenyl]diazenyl]naphthalene-1,5-disulfonate Chemical compound [Na+].[Na+].[Na+].COc1cc(N=Nc2cc(c3cccc(c3c2)S([O-])(=O)=O)S([O-])(=O)=O)c(C)cc1N=Nc1c(O)c2ccc(Nc3ccccc3)cc2cc1S([O-])(=O)=O VRVDFJOCCWSFLI-UHFFFAOYSA-K 0.000 description 1
- WTPOYMNMKZIOGO-UHFFFAOYSA-K trisodium;2,5-dichloro-4-[4-[[5-[[4-chloro-6-(4-sulfonatoanilino)-1,3,5-triazin-2-yl]amino]-2-sulfonatophenyl]diazenyl]-3-methyl-5-oxo-4h-pyrazol-1-yl]benzenesulfonate Chemical compound [Na+].[Na+].[Na+].CC1=NN(C=2C(=CC(=C(Cl)C=2)S([O-])(=O)=O)Cl)C(=O)C1N=NC(C(=CC=1)S([O-])(=O)=O)=CC=1NC(N=1)=NC(Cl)=NC=1NC1=CC=C(S([O-])(=O)=O)C=C1 WTPOYMNMKZIOGO-UHFFFAOYSA-K 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 125000003774 valeryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000000984 vat dye Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
Definitions
- the present invention relates to an ink composition, a recording medium, an ink jet recording method, and printed matter, and more particularly relates to an ink composition, a recording medium, an ink jet recording method with which the optical stability (light resistance) of the printed matter is excellent, there is no ink clogging, the yellowing resistance of the printed matter is excellent, and a high-quality image can be obtained.
- Ink jet recording is a printing method in which tiny drops of an ink composition are ejected and made to adhere to a recording medium such as paper.
- a feature of this method is that images of high quality and resolution can be printed at high speed with a relatively inexpensive apparatus.
- Dyes and Pigments 19 (1992, pp. 235-247) discusses that the photodegradation of a dye can be prevented by adding 2,2,6,6-tetramethyl-4-hydroxypiperidin-1-oxyl (a hindered amine-based light stabilizer) to an aqueous solution containing this dye.
- Japanese Laid-Open Patent Application H11-170686 which was published in a later issue of the above journal (Dyes and Pigments 19) discloses a technique for stabilizing a water-soluble dye by adding a specific compound (the above-mentioned 2,2,6,6-tetramethyl-4-hydroxypiperidin-1-oxyl or a derivative thereof) to a water-based ink jet recording liquid containing this water-soluble dye.
- This compound serves to halt the progress of a photo-oxidation reaction of a colorant and thereby prevent photodegradation by trapping radicals such as R• (alkyl radicals) produced by the optical excitation of carbonyl compounds and the like, or ROO• (peroxide radicals) produced by a reaction between R• and the oxygen in the air.
- R• alkyl radicals
- ROO• peroxide radicals
- the above-mentioned phenol derivative contained in the film is sublimable and therefore migrates from the film to the printed matter, the action of the light stabilizer in the printed matter brings about the dimerization and quinonization of the phenol derivative, and the resulting reaction product is the cause of the yellowing of the printed matter. It is believed that this reaction is particularly pronounced and yellowing especially apt to occur when the light stabilizer has oxy radicals.
- the inventors also learned that printed matter with excellent light resistance and yellowing resistance can be obtained if the recording medium has a receiving layer, and if this receiving layer contains a compound expressed by the above-mentioned General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1 wt %.
- the present invention was conceived on the basis of this knowledge, and provides an ink composition comprising a colorant, water, and a compound expressed by the above-mentioned General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1 wt %; and also provides a recording medium having a receiving layer containing a compound expressed by the above-mentioned General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1 wt %.
- the present invention further provides printed matter obtained by using this ink composition and/or this recording medium, and a recording method using the same.
- one of the causes of yellowing of printed matter is that the phenol derivative in the film sublimates and migrates into the printed matter, where it reacts with the compound expressed by General Formula 1, which is added as a light stabilizer.
- the present invention was conceived in light of the discovery that another cause of the yellowing of printed matter is that the compound expressed by General Formula 1 is also sublimable, and that yellowing of the printed matter can be prevented by adjusting the proportional evaporation of this compound (its weight reduction) to a specific value.
- the present invention is characterized in that the weight reduction of the compound expressed by General Formula 1 is set to a specific value, and there are no particular restrictions on the compound expressed by General Formula 1 as long as this specific value is attained.
- the compound expressed by General Formula 1 it is preferable for the compound expressed by General Formula 1 to have a water-soluble group W (where W is a —SO 2 NH 2 group, —NHCOCH 3 group, —CONH 2 group, —C ⁇ NH(NH 2 ) group, —NHC ⁇ NH(NH 2 ) group, —SO 3 H group, sulfuric ester group, —P(O) (OH) (OR), —P(O) (OR) 2 , carbamoyl group or salt thereof, salt of a carboxyl group, salt of an amino group, salt of a phenolic hydroxyl group, polyethylene glycol ether group, salt of —C ⁇ NH(NH 2 ), or salt of —NHC ⁇ NH(NH 2 ) (R is an alkyl group or aryl group)).
- W is a —SO 2 NH 2 group, —NHCOCH 3 group, —CONH 2 group, —C ⁇ NH(NH 2 ) group, —NHC ⁇ NH
- Z is a group of nonmetal atoms necessary to complete a six-member ring.
- the above-mentioned compound expressed by General Formula 1 is preferably contained in the ink composition in an amount of at least 0.05 wt % and no more than 10 wt %.
- the above-mentioned ink composition may further include a penetrant and/or a humectant.
- the compound expressed by General Formula 1 is contained in the above-mentioned recording medium of the present invention in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total weight of the above-mentioned ink receiving layer, with a range of at least 0.5 wt % and no more than 5 wt % being even better.
- the ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of the above-mentioned ink composition as this ink composition.
- the ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of the above-mentioned recording medium as this recording medium.
- the inventors discovered that printed matter with excellent light resistance, clogging resistance, and yellowing resistance can be obtained if the ink composition further contains at least one type of a specific compound A.
- the hydrazide compound in the present invention refers to corresponding carboxylic esters, acid halides, thiocarboxylic acids and other such acid derivatives, or sulfonic acid, chlorosulfonic acid, and other such sulfone derivatives, or a compound having a —CXNHNR 8 R 9 (where R 8 and R 9 are each a hydrogen, alkyl group, or aryl group, and X is S or O) group or a —SO 2 NHNR 8 R 9 (where R 8 and R 9 are each a hydrogen, alkyl group, or aryl group), obtained by a condensation reaction between an isocyanate or diisocyanate and a hydrazine compound expressed by the general formula NH 2 NR 8 R 9 (where R 8 and R 9 are each a hydrogen, alkyl group, or aryl group).
- the inventors also learned that printed matter with excellent light resistance and yellowing resistance can be obtained if the above-mentioned receiving layer further contains at least one type of a specific compound A.
- the present invention was conceived on the basis of the above knowledge, and provides an ink composition comprising a colorant, water, a compound expressed by the following General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, and at least one type of compound A selected as desired from among the three groups numbered I to III below; and also provides a recording medium having a receiving layer containing a compound expressed by the following General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, and at least one type of compound A selected as desired from among the three groups numbered I to III below.
- Group III inorganic salts expressed by MS 2 O 4 , MSO 3 , MS 2 O 3 , MPH 2 O 2 , and MPHO 3 (where M is an alkali metal or alkaline earth metal)
- the present invention further provides printed matter obtained using this ink composition and/or recording medium, and a recording method.
- One of the causes of yellowing of printed matter is that the phenol derivative in the film sublimates and migrates into the printed matter, where it reacts with the compound expressed by General Formula 1, which is added as a light stabilizer.
- the present invention was conceived in light of the discovery that another cause of the yellowing of printed matter is that the compound expressed by General Formula 1 is also sublimable, and that yellowing of the printed matter can be prevented by adjusting the proportional evaporation of this compound (its weight reduction) to a specific value, and adding a specific additive. There are no particular restrictions on the compound expressed by General Formula 1 as long as the weight reduction attains this specific value.
- the compound expressed by General Formula 1 it is preferable for the compound expressed by General Formula 1 to have a water-soluble group W (where W is a —SO 2 NH 2 group, —NHCOCH 3 group, —CONH 2 group, —C ⁇ NH(NH 2 ) group, —NHC ⁇ NH(NH 2 ) group, —SO 3 H group, sulfuric ester group, —P(O) (OH) (OR), —P(O) (OR) 2 , carbamoyl group or salt thereof, salt of a carboxyl group, salt of an amino group, salt of a phenolic hydroxyl group, polyethylene glycol ether group, salt of —C ⁇ NH(NH 2 ), or salt of —NHC ⁇ NH(NH 2 ) (R is an alkyl group or aryl group)).
- W is a —SO 2 NH 2 group, —NHCOCH 3 group, —CONH 2 group, —C ⁇ NH(NH 2 ) group, —NHC ⁇ NH
- Z is a group of nonmetal atoms necessary to complete a six-member ring.
- X may be an oxy radical.
- the above-mentioned compound A is contained in the above-mentioned ink composition in an amount of at least 0.01 wt % and no more than 10 wt %, with a range of at least 0.5 wt % and no more than 5 wt % being even better.
- the above-mentioned compound expressed by General Formula 1 is preferable for the above-mentioned compound expressed by General Formula 1 to be contained in the above-mentioned ink composition in an amount of at least 0.05 wt % and no more than 10 wt % with respect to the total amount of ink, with a range of at least 0.5 wt % and no more than 5 wt % being even better.
- the compound expressed by General Formula 1 and compound A are present in a weight ratio (former/latter) of at least 1:25 and no more than 5:1, with at least 1:5 and no more than 3:1 being particularly favorable.
- the hydrazide compound is preferably a compound expressed by the general formula R 5 CXNHNR 6 R 7 (where R 5 is an alkyl group or aryl group; R 6 and R 7 are a hydrogen, alkyl group, or aryl group; and X is S or O), or the general formula R 5 SO 2 NHNR 6 R 7 (where R 5 is an alkyl group or aryl group; and R 6 and R 7 are a hydrogen, alkyl group, or aryl group), or the general formula R 5 NHCXNHNR 6 R 7 (where R 5 is an alkyl group or aryl group; R 6 and R 7 are a hydrogen, alkyl group, or aryl group; and X is S or O).
- the hydrazide compound may have two or more hydrazide structures per molecule.
- the tertiary amine compound is preferably a compound expressed by the general formula R 5 R 6 R 7 N (where R 5 , R 6 , and R 7 are each a substitutable alkyl group, aryl group, or aralkyl group), or a substitutable cyclic tertiary amine.
- the inorganic salt is one or more inorganic salts selected from the group consisting of compounds expressed by MS 2 O 4 , MSO 3 , MS 2 O 3 , MPH 2 O 2 , and MPHO 3 (where M is an alkali metal or alkaline earth metal).
- the inorganic salt is preferably a potassium salt or sodium salt.
- compound A When compound A is selected from group I and used as an additive, it has the effect of giving the printed matter excellent light resistance, clogging resistance, and yellowing resistance, as well as improving the gas resistance of the printed matter.
- the above-mentioned ink composition may further comprise a penetrant and/or a humectant.
- compound A in order to ensure sufficient ink absorption by the recording medium and obtain yellowing resistance, it is preferable for compound A to be contained in the above-mentioned recording medium of the present invention in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total weight of the above-mentioned ink receiving layer, with a range of at least 0.5 wt % and no more than 5 wt % being even better.
- the compound expressed by General Formula 1 is contained in the above-mentioned recording medium of the present invention in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total weight of the above-mentioned ink receiving layer, with a range of at least 0.5 wt % and no more than 5 wt % being even better.
- the compound expressed by General Formula 1 and compound A are present in a weight ratio (former/latter) of at least 1:25 and no more than 5:1, with at least 1:5 and no more than 3:1 being particularly favorable.
- the ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of the above-mentioned ink composition as this ink composition.
- the ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of the above-mentioned recording medium as this recording medium.
- the ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of the above-mentioned ink composition as this ink composition, and by the use of a recording medium in which an ink receiving layer is provided over a substrate, and which contains compound A in this ink receiving layer, as this recording medium.
- the ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of an ink composition containing a colorant, water, and compound A as this ink composition, and by the use of the above-mentioned recording medium as this recording medium.
- the ink jet recording method of the present invention is characterized in that the ink composition comprises a colorant, water, and a compound expressed by the following General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, and the recording medium contains at least one type of compound A selected as desired from among the three groups numbered I to III above.
- the ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of an ink composition containing a colorant, water, and the above-mentioned compound expressed by the following General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, as this ink composition, and by the use of the above-mentioned recording medium as this recording medium.
- compound A In order to ensure sufficient ink absorption by the recording medium and obtain yellowing resistance in the above-mentioned recording method of the present invention, it is preferable for compound A to be contained in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total weight of the above-mentioned ink receiving layer, with a range of at least 0.5 wt % and no more than 5 wt % being even better.
- the compound expressed by General Formula 1 is contained in an amount of at least 0.05 wt % and no more than 10 wt % with respect to the total weight of the above-mentioned ink receiving layer, with a range of at least 0.5 wt % and no more than 5 wt % being even better. It is also preferable for the compound A content to be at least 0.01 wt % and no more than 10 wt %.
- the ink composition pertaining to the present invention is characterized by comprising a colorant, water, and a compound expressed by the above-mentioned General Formula 1, wherein the weight reduction in the compound expressed by said General Formula 1 after 1 hour at 60° C. is no more than 1%.
- X is a hydrogen, oxy radical, hydroxyl group, alkyl group, alkenyl group, alkynyl group, aryl group, acyl group, sulfonyl group, sulfinyl group, alkoxy group, aryloxy group, or acyloxy group;
- R 1 , R 2 , R 3 , and R 4 are each a hydrogen or alkyl group;
- Z is a group of nonmetal atoms necessary to complete a five- to seven-member ring; and any two groups out of R 1 to R 4 and Z may bond together to form a five- to seven-member ring.
- the compound expressed by General Formula 1 is preferably a compound expressed by the following general formula, having a water-soluble group W.
- W is a —SO 2 NH 2 group, —NHCOCH 3 group, —CONH 2 group, —C ⁇ NH(NH 2 ) group, —NHC ⁇ NH(NH 2 ) group, —SO 3 H group, sulfuric ester group, —P(O) (OH) (OR) , —P(O) (OR) 2 , carbamoyl group or salt thereof, salt of a carboxyl group, salt of an amino group, salt of a phenolic hydroxyl group, polyethylene glycol ether group, salt of —C ⁇ NH(NH 2 ), or salt of —NHC ⁇ NH(NH 2 ) (R is an alkyl group or aryl group);
- X is a hydrogen, oxy radical, hydroxyl group, alkyl group, alkenyl group, alkynyl group, aryl group, acyl group, sulfonyl group, sulfinyl group, alkoxy group, aryloxy group
- Examples of the alkyl group expressed by X in General Formula 1 include a methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, tert-butyl group, n-octyl group, benzyl group, and hexadecyl group; examples of the alkenyl group include an aryl group and oleyl group; examples of the alkynyl group include an ethynyl group; examples of the aryl group include a phenyl group and naphthyl group; examples of the acyl group include an acetyl group, benzoyl group, and pentanoyl group; examples of the sulfonyl group include a methanesulfonyl group, benzenesulfonyl group, and toluenesulfonyl group; examples of the sulfinyl group include a methan
- R 1 , R 2 , R 3 , and R 4 in General Formula 1 are each a hydrogen or alkyl group.
- This alkyl group is selected from the same set as the alkyl group expressed by the above-mentioned X.
- a methyl group is particularly favorable.
- Z in the compound expressed by General Formula 1 is a group of nonmetal atoms necessary to complete a six-member ring.
- the compound expressed by General Formula 1 can be made by the methods discussed in Journal of Polymer Science, Part B: Polymer Physics , Vol. 25, 1299-1310 (1987), written by Kunihiro Hamada, Toshiro Iijima, and Ralph McGregor, and in Polymer , Vol. 29 (1), 93-98 (1988), written by Kunihiro Hamada, Toshiro Iijima, and Ralph McGregor, for example.
- the compound of Formula I-1 can be made by the first of the methods cited above, while the compound of Formula 1-2 can be made by the second of these methods.
- the compound expressed by General Formula 1 is preferably contained in the ink composition in an amount of at least 0.05 wt % and no more than 10 wt %, and more preferably in an amount of at least 0.1 wt % and no more than 5 wt %.
- the ink composition pertaining to the present invention is characterized by comprising a colorant, water, a compound expressed by the following General Formula 1, and the above-mentioned compound A, wherein the weight reduction in the compound expressed by General Formula 1 after 1 hour at 60° C. is no more than 1%.
- hydrazide compounds include hydrazide (acyl hydrazide), thiocarbohydrazide, and derivatives of these.
- R 5 CXNHNR 6 R 7 (where R 5 is an alkyl group or aryl group; R 6 and R 7 are a hydrogen, alkyl group, or aryl group; and X is S or O), or the general formula R 5 SO 2 NHNR 6 R 7 (where R 5 is an alkyl group or aryl group; and R 6 and R 7 are a hydrogen, alkyl group, or aryl group), or the general formula R 5 NHCXNHNR 6 R 7 (where R 5 is an alkyl group or aryl group; R 6 and R 7 are a hydrogen, alkyl group, or aryl group; and X is S or O).
- the yellowing resistance of the printed matter will be particularly good if the hydrazide compound has two or more hydrazide structures per molecule.
- the hydrazide compound prefferably be contained in the ink composition in an amount of at least 0.01 wt % and no more than 10 wt %, with at least 0.1 wt % and no more than 5 wt % being particularly favorable. Adjusting to the preferred content markedly improves the yellowing resistance of the printed matter.
- the compound expressed by General Formula 1 and the hydrazide compound are present in a weight ratio (former/latter) of at least 1:25 and no more than 5:1, with at least 1:5 and no more than 3:1 being particularly favorable. Adjusting to the preferred weight ratio markedly improves the yellowing resistance of the printed matter.
- the tertiary amine compound is preferably a compound expressed by the general formula R 5 R 6 R 7 N (where R 5 , R 6 , and R 7 are each a substitutable alkyl group, aryl group, or aralkyl group), or a substitutable cyclic tertiary amine.
- the compound expressed by the general formula R 5 R 6 R 7 N may be one in which R 5 , R 6 , and R 7 are each individually a substitutable alkyl group, aryl group, or aralkyl group.
- R 5 , R 6 , and R 7 are each individually a substitutable alkyl group, aryl group, or aralkyl group.
- Specific examples include triethanolamine, dimethylethanolamine, diethylethanolamine, butyldiethanolamine, methyldiethanolamine, triisopropanolamine, trimethylamine, triethylamine, tripropylamine, tributylamine, triallylamine, dimethylaniline, diethylaniline, tribenzylamine, triphenylamine, N,N-dimethylbenzylamine, N,N-dimethylphenethylamine, N,N-diethylbenzylamine, and derivatives of these.
- the yellowing resistance of the printed matter will be particularly good when R 5
- Examples of the substitutable cyclic tertiary amine include 1,4-diazabicyclo[2.2.2]octane (DABCO), 1,8-diazabicyclo[5.4.0]-7-undecene (DBU), 1,5-diazabicyclo[4.3.0]-5-nonene (DBN), hexamethylenetetramine (HMTA), N-methylpiperidine, N-methylmorpholine, N-methylpyrrolidine, N-methylpyrrole, 2-methylpyridine, 2-ethylpyridine, 3-methylpyridine, 3-methylquinoline, and derivatives of these.
- DABCO 1,4-diazabicyclo[2.2.2]octane
- DBU 1,8-diazabicyclo[5.4.0]-7-undecene
- DBN 1,5-diazabicyclo[4.3.0]-5-nonene
- HMTA hexamethylenetetramine
- N-methylpiperidine N-methylmorpholine
- tertiary amine compounds may be used singly or in combinations.
- the tertiary amine compound is preferably contained in the ink composition in an amount of at least 0.01 wt % and no more than 10 wt %, with at least 0.1 wt % and no more than 5 wt % being particularly favorable. Adjusting to the preferred content markedly improves the yellowing resistance of the printed matter.
- the compound expressed by General Formula 1 and the tertiary amine compound are present in a weight ratio (former/latter) of at least 1:25 and no more than 5:1, with at least 1:5 and no more than 3:1 being particularly favorable. Adjusting to the preferred weight ratio markedly improves the yellowing resistance of the printed matter.
- Examples of inorganic salts include one or more types selected from the group consisting of compounds expressed by MS 2 O 4 , MSO 3 , MS 2 O 3 , MPH 2 O 2 , and MPHO 3 (where M is an alkali metal or alkaline earth metal). Potassium, sodium, and lithium are favorable as the alkali metal, and magnesium, calcium, and barium are favorable as the alkaline earth metal. It is particularly favorable for the inorganic salt of the present invention to be a potassium salt or sodium salt.
- inorganic salts include K 2 S 2 O 4 , Na 2 S 2 O 4 , Li 2 S 2 O 4 , MgS 2 O 4 , CaS 2 O 4 , BaS 2 O 4 , K 2 SO 3 , Na 2 SO 3 , Li 2 SO 3 , MgSO 3 , CaSO 3 , BaSO 3 , K 2 S 2 O 3 , Na 2 S 2 O 3 , Li 2 S 2 O 3 , MgS 2 O 3 , CaS 2 O 3 , BaS 2 O 3 , KPH 2 O 2 , NaPH 2 O 2 , LiPH 2 O 2 , Mg(PH 2 O 2 ) 2 , Ca(PH 2 O 2 ) 2 , Ba(PH 2 O 2 ), K 2 PHO 3 , Na 2 PHO 3 , Li 2 PHO 3 , MgPHO 3 , CaPHO 3 , and BaPHO 3 .
- the yellowing resistance of the printed matter will be markedly improved when a potassium salt or sodium salt is used
- the inorganic salt is preferably contained in the ink composition in an amount of at least 0.01 wt % and no more than 10 wt %, with at least 0.1 wt % and no more than 5 wt % being particularly favorable. Adjusting to the preferred content markedly improves the yellowing resistance of the printed matter.
- the compound expressed by General Formula 1 and the inorganic salt are present in a weight ratio (former/latter) of at least 1:25 and no more than 5:1, with at least 1:5 and no more than 3:1 being particularly favorable. Adjusting to the preferred weight ratio markedly improves the yellowing resistance of the printed matter.
- the compound expressed by General Formula 1 is preferably a compound having a water-soluble group W as mentioned above.
- the compound expressed by General Formula 1 is preferably contained in the ink composition in an amount of at least 0.05 wt % and no more than 10 wt %, with at least 0.1 wt % and no more than 5 wt % being particularly favorable.
- a dye or pigment can be used as the colorant.
- the dye is preferably water-soluble, specific examples of which include those classified in the Color Index as acid dyes, direct dyes, catalyst dyes, reactive dyes, soluble vat dyes, sulfur dyes, and food colorings. Many of those dyes not listed in the Color Index can also be used favorably.
- Reactive Yellow 2 C.I. Direct Red 23, 79, 80, 83, 99, 220, 224, and 227, C.I. Acid Red 1, 8, 17, 18, 32, 35, 37, 42, 52, 57, 92, 115, 119, 131, 133, 134, 154, 186, 249, 254, and 256, C.I. Basic Red 14 and 39, C.I. Disperse Red 60, C.I. Direct Blue 6, 8, 15, 25, 71, 76, 80, 86, 90, 106, 108, 123, 163, 165, 168, 199, and 226, C.I.
- the pigment which can be either an inorganic pigment or an organic pigment.
- Inorganic pigments that can be used include titanium oxide and iron oxide, as well as carbon black made by a known method such as a contact process, furnace process, or thermal process.
- the organic pigment can be an azo dye (including azo lake, insoluble azo pigments, condensed azo pigments, chelate azo pigments, and so forth), a polycyclic pigment (such as phthalocyanine pigments, perylene pigments, perinone pigments, anthraquinone pigments, quinacridone pigments, dioxazine pigments, thioindigo pigments, isoindolinone pigments, and quinophthalone pigments), a dye chelate (such as basic dye chelates and acid dye chelates), a nitro pigment, a nitroso pigment, aniline black, or the like.
- an azo dye including azo lake, insoluble azo pigments, condensed azo pigments, chelate azo pigments, and so forth
- a polycyclic pigment such as phthalocyanine pigments, perylene pigments, perinone pigments, anthraquinone pigments, quinacridone pigments, dioxazin
- the carbon black used for black ink can be No. 2300, No. 900, MCF88, No. 33, No. 40, No. 45, No. 52, MA7, MA8, MA100, No. 2200B, or the like from Mitsubishi Chemical, Raven 5750, Raven 5250, Raven 5000, Raven 3500, Raven 1255, Raven 700, or the like from Colombia, Regal 400R, Regal 330R, Regal 1660R, Mogul L, Monarch 700, Monarch 800, Monarch 880, Monarch 900, Monarch 1000, Monarch 1100, Monarch 1300, Monarch 1400, or the like from Cabot, or Color Black FW1, Color Black FW2, Color Black FW2V, Color Black FW18, Color Black FW200, Color Black S150, Color Black S160, Color Black S170, Printex 35, Printex U, Printex V, Printex 140U, Special Black 6, Special Black 5, Special Black 4A, Special Black 4, or the like from Degussa.
- pigments used for yellow ink include C.I. Pigment Yellow 1, C.I. Pigment Yellow 2, C.I. Pigment Yellow 3, C.I. Pigment Yellow 12, C.I. Pigment Yellow 13, C.I. Pigment Yellow 14C, C.I. Pigment Yellow 16, C.I. Pigment Yellow 17, C.I. Pigment Yellow 73, C.I. Pigment Yellow 74, C.I. Pigment Yellow 75, C.I. Pigment Yellow 83, C.I. Pigment Yellow 93, C.I. Pigment Yellow 95, C.I. Pigment Yellow 97, C.I. Pigment Yellow 98, C.I. Pigment Yellow 119, C.I. Pigment Yellow 110, C.I. Pigment Yellow 114, C.I.
- pigments used for red ink include C.I. Pigment Red 5, C.I. Pigment Red 7, C.I. Pigment Red 12, C.I. Pigment Red 48 (Ca), Pigment Red 48 (Mu), Pigment Red 57 (Ca), C.I. Pigment Red 57:1, C.I. Pigment Red 112, C.I. Pigment Red 122, C.I. Pigment Red 123, C.I. Pigment Red 168, C.I. Pigment Red 184, and C.I. Pigment Red 202.
- pigments used for blue ink include C.I. Pigment Blue 1, C.I. Pigment Blue 2, C.I. Pigment Blue 3, C.I. Pigment Blue 15:3, C.I. Pigment Blue 15:34, C.I. Pigment Blue 15:4, C.I. Pigment Blue 16, C.I. Pigment Blue 22, C.I. Pigment Blue 60, C.I. Vat Blue 4, and C.I. Vat Blue 60.
- the colorant should be added to the ink composition in an amount of at least 0.1 wt % and no more than 20 wt %, with at least 0.5 wt % and no more than 10 wt % being even better.
- the particle diameter should be no more than 10 ⁇ m, and preferably no more than 0.1 ⁇ m.
- Water is used as a solvent in the ink composition of the present invention. Ion exchange water, ultrafiltration water, reverse osmosis water, distilled water, or other such pure water or ultra-pure water can be used favorably for this water.
- the ink composition of the present invention may also contain a penetrant and/or a humectant.
- the penetrant can be any of a wide range of compounds that lower the surface tension of an ink, promote the penetration of the ink into the recording medium, and shorten the ink drying time.
- examples include ethanol, propanol, isopropanol, butanol, pentanol, and other lower alcohols; ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, and other such cellosolves; diethylene glycol monobutyl ether, triethylene glycol monobutyl ether glycol ether, and other carbitols; and nonionic surfactants.
- the humectant can be any of a wide range of compounds that suppress the evaporation of water, keep the ink wet, and improve its discharge stability.
- Examples include ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, polypropylene glycol, glycerol, diglycerol, 1,3-propanediol, 1,5-pentanediol, and other polyhydric alcohols; maltitol, maltose, sorbitol, and other sugars; trimethylolethane, trimethylolpropane, and other glycerol derivatives; ethylene carbonate and other carbonic esters; imidazole, 2-methylimidazole, and other imidazole derivatives; 2-pyridinol, 3-pyridinol, and other pyridinol derivatives; and urea.
- the ink composition of the present invention can further contain any auxiliaries commonly used in ink jet recording inks.
- auxiliaries include pH regulators, chelating agents, preservatives, and rust inhibitors.
- a compound expressed by General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, and a hydrazide compound, a tertiary amine compound, or a specific inorganic salt will act effectively in the present invention when applied as an imparting liquid over the recording medium, either separately from the ink composition or by being added thereto.
- the imparting liquid can be produced from the same components as the above-mentioned ink composition, except for the colorant.
- An ink receiving layer comprising at least an ink absorbent pigment, an ink fixing agent, and a binder is known to allow the high-quality reproduction of color images, photographic images, and so on, and the ink receiving layer of the recording medium pertaining to the embodiments of the present invention contains a compound expressed by General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%.
- the compound expressed by General Formula 1 is preferably contained in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total dry weight of the ink receiving layer, with at least 0.1 wt % and no more than 5 wt % being particularly favorable.
- One or more types of known white pigment can be used as the ink absorbent pigment, examples of which include synthetic amorphous silica, colloidal silica, and other types of silica, and colloidal alumina.
- white pigments besides silica and alumina include light calcium carbonate, heavy calcium carbonate, magnesium carbonate, kaolin, talc, calcium sulfate, barium sulfate, titanium dioxide, zinc oxide, zinc sulfide, zinc carbonate, titanium white, aluminum silicate, diatomaceous earth, calcium silicate, magnesium silicate, pseudo-boehmite, aluminum hydroxide, magnesium hydroxide, lithopone, zeolite, hydrated halloysite, and other such white inorganic pigments, and styrene-based plastic pigments, acrylic-based plastic pigments, polyethylene, melamine resin, urea resin, and other such organic pigments.
- These ink absorbent pigments are preferably contained in an amount of at least 30 wt % and no more than 90 wt % with respect to the total dry weight of the ink receiving layer, with a range of at least 40 wt % and no more than 80 wt % being particularly favorable.
- a cationic compound is particularly favorable as the ink fixing agent, examples of which include low-molecular weight compounds having primary to tertiary amine or quaternary ammonium bases, oligomers having these groups, and polymers having these groups.
- diallyl dimethyl ammonium chloride polymers diallyl dimethyl ammonium chloride-sulfur dioxide copolymers, diallyl dimethyl ammonium chloride-acrylamide copolymers, and other such diallyl dimethyl ammonium salt polymers, diallylamine hydrochloride-sulfur dioxide copolymers, diallylmethylamine hydrochloride copolymers, polyallylamines, polyethyleneimines, polyethyleneimine quaternary ammonium salt compounds, (meth)acrylic acid alkyl ammonium salt polymers, (meth)acrylamide alkyl ammonium salt polymers, ionenes containing quaternary ammonium salts, and polyalkyleneamine dicyandiamide ammonium salt condensates.
- These ink fixing agents are preferably contained in an amount of at least 1 wt % and no more than 30 wt % with respect to the total dry weight of the ink receiving layer, with a range of at least 5 wt % and no more than 10 wt % being particularly favorable.
- binders include oxidized starch, etherified starch, phosphoric esterified starch, and other starch derivatives, carboxylmethyl cellulose, hydroxyethyl cellulose, and other cellulose derivatives, casein, gelatin, soy protein, polyvinyl alcohol and derivatives thereof, polyvinylpyrrolidone, maleic anhydride resin, styrene-butadiene copolymers, methyl methacrylate-butadiene copolymers, and other conjugated diene-based copolymer latexes, acrylic ester and methacrylic ester copolymers or acrylic polymers, and other acrylic polymer latexes, ethylene-vinyl acetate copolymers and other vinyl polymer latexes, functional group modified polymer latexes comprising carboxyl group and other such functional group-containing monomers of these various polymers, melamine resins, urea resins, and other thermosetting resins, and other such water-based
- These binders are preferably contained in an amount of at least 10 wt % and no more than 60 wt % with respect to the total dry weight of the ink receiving layer, with a range of at least 20 wt % and no more than 50 wt % being particularly favorable.
- the ink receiving layer may also contain various known additives, such as dye fixing agents (water resistance agents), fluorescent whiteners, surfactants, anti-foaming agents, pH regulators, mildewproofing agents, UV absorbents, and antioxidants.
- dye fixing agents water resistance agents
- fluorescent whiteners fluorescent whiteners
- surfactants surfactants
- anti-foaming agents pH regulators
- mildewproofing agents UV absorbents
- antioxidants antioxidants.
- the structure of the ink receiving layer was described above, but it is particularly favorable for the percentage of void of the ink receiving layer to be set to between 30% and 80% by using silica or alumina as the main structural component of the ink receiving layer and adjusting the particle diameter of this silica or alumina, the amounts in which the other structural components are contained, and so forth. If the percentage of void is at least 30%, the recording medium will have particularly good ink absorbency, and keeping this percentage to 80% or lower ensures that the ink receiving layer will have sufficient strength.
- a sheet of paper or plastic is used as the substrate, which can be either translucent or opaque.
- a conventional substrate can be used, and specific examples of paper include paper composed of wood-pulp or non-wood-pulp raw material whose main component is natural cellulose fiber, while examples of plastic materials include polyester resins, diacetate resins, triacetate resins, acrylic resins, polycarbonate resins, polyvinyl chloride resins, polyimide resins, cellophane, and celluloid.
- the recording medium of the present invention can be favorably obtained by coating the above-mentioned substrate with a coating solution in which the above-mentioned structural components have been dissolved or dispersed in water or another suitable solvent, by roll coating, spray coating, rod bar coating, air knife coating, or another known coating method, and then drying this coating.
- a standard dryer can be used to dry the coating, and this drying is usually performed between 100 and 150° C.
- the ink receiving layer of the recording medium pertaining to another embodiment of the present invention contains a compound expressed by the following General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, and a hydrazide compound, tertiary amine compound, or specific inorganic salt.
- the compound expressed by General Formula 1, the hydrazide compound, the tertiary amine compound, and the inorganic salt are preferably the same as those used for the above-mentioned ink composition.
- the compound expressed by General Formula 1 is preferably contained in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total dry weight of the ink receiving layer, with a range of at least 0.1 wt % and no more than 5 wt % being particularly favorable.
- the hydrazide compound, tertiary amine compound, and inorganic salt are preferably contained in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total dry weight of the ink receiving layer, with a range of at least 0.1 wt % and no more than 5 wt % being particularly favorable. Adjusting to the preferred range markedly improves the yellowing resistance of the printed matter.
- the compound expressed by General Formula 1 and the hydrazide compound, tertiary amine compound, or inorganic salt are present in a weight ratio (former/latter) of at least 1:25 and no more than 5:1, with at least 1:5 and no more than 3:1 being particularly favorable. Adjusting to the preferred weight ratio markedly improves the yellowing resistance of the printed matter.
- the ink absorbent pigment, the ink absorbent pigment content, the ink fixing agent, the ink fixing agent content, the binder, the binder content, the additives, and other structural features of the ink receiving layer, and the method for manufacturing the recording medium and the substrate are preferably the same as described above.
- the ink jet recording method of the present invention allows printed matter with excellent light resistance and excellent yellowing resistance to be obtained by performing ink jet recording using the above-mentioned ink composition and/or recording medium.
- the ink jet recording method of the present invention printed matter with sufficient light resistance and excellent yellowing resistance can be obtained when the ink composition contains a colorant, water, and a compound expressed by the following General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, and when the recording medium contains a hydrazide compound, a tertiary amine compound, or a specific inorganic salt.
- thermobalance is a standard and simple way of measuring weight reduction. Nitrogen or dry air was used for the atmosphere during the use of the thermobalance. The temperature was steadily raised from room temperature, and held for 1 hour at 60° C. The heating rate is generally 1 to 10° C. per minute, and in these examples the measurements were made under a dry air environment and at a heating rate of 5° C. per minute. TABLE 1 Ink composition No. 1 2 3 4 5 6 Colorant C.I. Direct Red 3 2 249 C.I. Direct Yellow 4 4 132 C.I. Direct Yellow 2.5 2.5 86 Compound expressed by General Formula 1 Form. 1-1 compound 0.5 7 (weight red.: ⁇ 0.2%) Form.
- optical irradiation was performed using a xenon weatherometer (Ci5000, made by Atlas), with the printed matter being exposed with a black panel at 35° C., a relative humidity of 60%, and a 340 nm UV light emission of 0.18 W/m 2 .
- the irradiation conditions comprised either 180 kJ/m 2 (278 hours of optical irradiation under the above conditions) or 360 kJ/m 2 (556 hours of optical irradiation under the above conditions).
- the reflection intensity of the various color components of the printed matter was measured using a spectrophotometer (Gretag SPM, made by Gretag).
- the conditions here comprised a D50 light source, no light source filter, a white standard of absolute white, and a field angle of 2°. Intensity retention was evaluated from the following criteria.
- [0154] [A special ink jet recording medium] (Premium Glossy Photo Paper, made by Seiko Epson) was printed by the same method as in the light resistance test.
- the printed matter thus obtained was then put into a clear plastic folder (CL-A420, made by Mitsubishi Pencil) and stored for a period of three days to one month at a temperature of 40° C. and a relative humidity of 20%. After the specified time had elapsed, the printed matter was taken out of its plastic folder and visually checked according to the following criteria for discoloration in the non-printed portions and for color change in the printed portions and the surrounding areas.
- Table 2 gives the results of the various tests conducted using the above-mentioned ink compositions 1 to 6.
- Example/ Ex. Ex. Ex. Ex. CE CE Comparative Example No. 1 2 3 4 1 2 Light 180 kJ/m 2 A A A A A C resistance 360 kJ/m 2 A B A A B C test Clogging test 1 month A A A A A A (40° C., 20% RH) 3 months A B A A B A 6 months A B B A B B 12 months A B B B B B B Folder 3 days A A A A A A A A A A A A yellowing 7 days A A A A B A test 14 days A A B B B A (40° C., 20% RH) 28 days B A B B C A
- thermobalance is a standard and simple way of measuring weight reduction. Nitrogen or dry air was used for the atmosphere during the use of the thermobalance. The temperature was steadily raised from room temperature, and held for 1 hour at 60° C. The heating rate is generally 1 to 10° C. per minute, and in these examples the measurements were made under a dry air environment and at a heating rate of 5° C. per minute. TABLE 5 Ink composition No. 1 2 3 4 5 6 7 8 9 10 11 12 Colorant C.I. Direct Red 249 2 3 3 C.I. Direct Yellow 4 3 4 4 132 C.I. Direct Yellow 2.5 2.5 2.5 86 Compound expressed by Form.
- optical irradiation was performed using a xenon weatherometer (Ci5000, made by Atlas), with the printed matter being exposed with a black panel at 35° C., a relative humidity of 60%, and a 340 nm UV light emission of 0.18 W/m 2 .
- the irradiation conditions comprised either 180 kJ/m 2 (278 hours of optical irradiation under the above conditions) or 360 kJ/m 2 (556 hours of optical irradiation under the above conditions).
- the reflection intensity of the various color components of the printed matter was measured using a spectrophotometer (Gretag SPM, made by Gretag).
- the conditions here comprised a D50 light source, no light source filter, a white standard of absolute white, and a field angle of 2°. Intensity retention was evaluated from the following criteria.
- a special ink jet recording medium (Premium Glossy Photo Paper, made by Seiko Epson) was printed by the same method as in the light resistance test.
- the printed matter thus obtained was then put into a clear plastic file (CL-A420, made by Mitsubishi Pencil) and stored for a period of three days to one month at a temperature of 60° C. and a relative humidity of 20%. After the specified time had elapsed, the printed matter was taken out of its plastic folder and visually checked according to the following criteria for color change in the non-printed portions and for discoloration in the printed portions and the surrounding areas.
- CL-A420 made by Mitsubishi Pencil
- Tables 7 and 8 give the results of the various tests conducted using the above-mentioned ink compositions 1 to 24. TABLE 7 Ink composition No. 1 2 3 4 5 6 7 8 9 10 11 12 Example/Comparative Ex Ex Ex Ex CE CE CE CE Ex Ex Ex Example No.
- the printed matter of the present invention has excellent light resistance of the recorded images, as well as excellent yellowing resistance.
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Abstract
Description
- 1. Field of the Invention
- The present invention relates to an ink composition, a recording medium, an ink jet recording method, and printed matter, and more particularly relates to an ink composition, a recording medium, an ink jet recording method with which the optical stability (light resistance) of the printed matter is excellent, there is no ink clogging, the yellowing resistance of the printed matter is excellent, and a high-quality image can be obtained.
- 2. Description of the Related Art
- Ink jet recording is a printing method in which tiny drops of an ink composition are ejected and made to adhere to a recording medium such as paper. A feature of this method is that images of high quality and resolution can be printed at high speed with a relatively inexpensive apparatus.
- Various ink compositions have been proposed in the past for use in recording by this ink jet recording method.
- There has been increasing need in recent years for better weatherproofness (particularly light resistance) of recorded images, and to this end there have been attempts at adding light stabilizers such as hindered amine compounds to ink compositions.
- For instance, Dyes and Pigments 19 (1992, pp. 235-247) discusses that the photodegradation of a dye can be prevented by adding 2,2,6,6-tetramethyl-4-hydroxypiperidin-1-oxyl (a hindered amine-based light stabilizer) to an aqueous solution containing this dye. Japanese Laid-Open Patent Application H11-170686, which was published in a later issue of the above journal (Dyes and Pigments 19) discloses a technique for stabilizing a water-soluble dye by adding a specific compound (the above-mentioned 2,2,6,6-tetramethyl-4-hydroxypiperidin-1-oxyl or a derivative thereof) to a water-based ink jet recording liquid containing this water-soluble dye. This compound serves to halt the progress of a photo-oxidation reaction of a colorant and thereby prevent photodegradation by trapping radicals such as R• (alkyl radicals) produced by the optical excitation of carbonyl compounds and the like, or ROO• (peroxide radicals) produced by a reaction between R• and the oxygen in the air. Printed matter produced by ink jet recording using this recording liquid has outstanding light resistance.
- However, while the light resistance of a recorded image is indeed improved by using an ink composition that contains the above-mentioned light stabilizer, a new problem is encountered in that if the printed matter is stored in a file equipped with a film containing an antioxidant composed of a specific phenol derivative, or if such a film is applied to the printed matter, the printed matter will yellow due to the effect of the light stabilizer.
- The reason for this is believed to be that the specific phenol derivative reacts through the action of the hindered amine compound or other such light stabilizer contained in the ink composition fixed to the recording medium. BHT (2,6-di-tert-butyl-4-methylphenol) is an example of this specific phenol derivative.
- Specifically, the above-mentioned phenol derivative contained in the film is sublimable and therefore migrates from the film to the printed matter, the action of the light stabilizer in the printed matter brings about the dimerization and quinonization of the phenol derivative, and the resulting reaction product is the cause of the yellowing of the printed matter. It is believed that this reaction is particularly pronounced and yellowing especially apt to occur when the light stabilizer has oxy radicals.
- Even if the compound used as the light stabilizer does not have any oxy radicals, an oxidation reaction in the course of the printed matter being stored in the air can generate oxy radicals in the compound serving as the light stabilizer, so the yellowing reaction still proceeds, albeit more slowly, and the printed matter still ends up yellowing.
- It is therefore an object of the present invention to provide an ink composition, a recording medium, an ink jet recording method, and printed matter with which the light resistance of the printed matter is excellent, there is no ink clogging, and a high-quality image with almost no yellowing of the printed matter can be obtained.
- As a result of diligent research, the inventors learned that printed matter with excellent light resistance, clogging resistance, and yellowing resistance can be obtained by using an ink composition comprising a colorant, water, and a compound expressed by the General Formula 1 of claim 1, whose weight reduction after 1 hour at 60° C. is no more than 1 wt %.
- The inventors also learned that printed matter with excellent light resistance and yellowing resistance can be obtained if the recording medium has a receiving layer, and if this receiving layer contains a compound expressed by the above-mentioned General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1 wt %.
- The present invention was conceived on the basis of this knowledge, and provides an ink composition comprising a colorant, water, and a compound expressed by the above-mentioned General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1 wt %; and also provides a recording medium having a receiving layer containing a compound expressed by the above-mentioned General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1 wt %. The present invention further provides printed matter obtained by using this ink composition and/or this recording medium, and a recording method using the same.
- As mentioned above, one of the causes of yellowing of printed matter is that the phenol derivative in the film sublimates and migrates into the printed matter, where it reacts with the compound expressed by General Formula 1, which is added as a light stabilizer. The present invention was conceived in light of the discovery that another cause of the yellowing of printed matter is that the compound expressed by General Formula 1 is also sublimable, and that yellowing of the printed matter can be prevented by adjusting the proportional evaporation of this compound (its weight reduction) to a specific value. The present invention is characterized in that the weight reduction of the compound expressed by General Formula 1 is set to a specific value, and there are no particular restrictions on the compound expressed by General Formula 1 as long as this specific value is attained.
- In the above, it is preferable for the compound expressed by General Formula 1 to have a water-soluble group W (where W is a —SO2NH2 group, —NHCOCH3 group, —CONH2 group, —C═NH(NH2) group, —NHC═NH(NH2) group, —SO3H group, sulfuric ester group, —P(O) (OH) (OR), —P(O) (OR)2, carbamoyl group or salt thereof, salt of a carboxyl group, salt of an amino group, salt of a phenolic hydroxyl group, polyethylene glycol ether group, salt of —C═NH(NH2), or salt of —NHC═NH(NH2) (R is an alkyl group or aryl group)).
- In the above-mentioned compound expressed by General Formula 1, it is preferable for Z to be a group of nonmetal atoms necessary to complete a six-member ring.
- The above-mentioned compound expressed by General Formula 1 is preferably contained in the ink composition in an amount of at least 0.05 wt % and no more than 10 wt %.
- The above-mentioned ink composition may further include a penetrant and/or a humectant.
- The above constitution prevents the dimerization and quinonization of the phenol derivative, so the resulting printed matter has excellent light resistance and excellent yellowing resistance.
- In order to ensure sufficient ink absorption by the recording medium and obtain yellowing resistance, it is preferable for the compound expressed by General Formula 1 to be contained in the above-mentioned recording medium of the present invention in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total weight of the above-mentioned ink receiving layer, with a range of at least 0.5 wt % and no more than 5 wt % being even better.
- The ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of the above-mentioned ink composition as this ink composition.
- Also, the ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of the above-mentioned recording medium as this recording medium.
- Using these recording methods makes it possible to obtain printed matter with excellent light resistance and excellent yellowing resistance.
- Also, as a result of diligent research, the inventors discovered that printed matter with excellent light resistance, clogging resistance, and yellowing resistance can be obtained if the ink composition further contains at least one type of a specific compound A.
- The hydrazide compound in the present invention refers to corresponding carboxylic esters, acid halides, thiocarboxylic acids and other such acid derivatives, or sulfonic acid, chlorosulfonic acid, and other such sulfone derivatives, or a compound having a —CXNHNR8R9 (where R8 and R9 are each a hydrogen, alkyl group, or aryl group, and X is S or O) group or a —SO2NHNR8R9 (where R8 and R9 are each a hydrogen, alkyl group, or aryl group), obtained by a condensation reaction between an isocyanate or diisocyanate and a hydrazine compound expressed by the general formula NH2NR8R9 (where R8 and R9 are each a hydrogen, alkyl group, or aryl group).
- The inventors also learned that printed matter with excellent light resistance and yellowing resistance can be obtained if the above-mentioned receiving layer further contains at least one type of a specific compound A.
- The present invention was conceived on the basis of the above knowledge, and provides an ink composition comprising a colorant, water, a compound expressed by the following General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, and at least one type of compound A selected as desired from among the three groups numbered I to III below; and also provides a recording medium having a receiving layer containing a compound expressed by the following General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, and at least one type of compound A selected as desired from among the three groups numbered I to III below.
- Group I: hydrazide compounds
- Group II: tertiary amine compounds
- Group III: inorganic salts expressed by MS2O4, MSO3, MS2O3, MPH2O2, and MPHO3 (where M is an alkali metal or alkaline earth metal)
- The present invention further provides printed matter obtained using this ink composition and/or recording medium, and a recording method.
- One of the causes of yellowing of printed matter is that the phenol derivative in the film sublimates and migrates into the printed matter, where it reacts with the compound expressed by General Formula 1, which is added as a light stabilizer. The present invention was conceived in light of the discovery that another cause of the yellowing of printed matter is that the compound expressed by General Formula 1 is also sublimable, and that yellowing of the printed matter can be prevented by adjusting the proportional evaporation of this compound (its weight reduction) to a specific value, and adding a specific additive. There are no particular restrictions on the compound expressed by General Formula 1 as long as the weight reduction attains this specific value.
- In the above, it is preferable for the compound expressed by General Formula 1 to have a water-soluble group W (where W is a —SO2NH2 group, —NHCOCH3 group, —CONH2 group, —C═NH(NH2) group, —NHC═NH(NH2) group, —SO3H group, sulfuric ester group, —P(O) (OH) (OR), —P(O) (OR)2, carbamoyl group or salt thereof, salt of a carboxyl group, salt of an amino group, salt of a phenolic hydroxyl group, polyethylene glycol ether group, salt of —C═NH(NH2), or salt of —NHC═NH(NH2) (R is an alkyl group or aryl group)).
- In the above-mentioned compound expressed by General Formula 1, it is preferable for Z to be a group of nonmetal atoms necessary to complete a six-member ring.
- In the above-mentioned compound expressed by General Formula 1, X may be an oxy radical.
- In order to obtain sufficient light resistance, clogging resistance, and yellowing resistance, it is preferable for the above-mentioned compound A to be contained in the above-mentioned ink composition in an amount of at least 0.01 wt % and no more than 10 wt %, with a range of at least 0.5 wt % and no more than 5 wt % being even better.
- In order to obtain sufficient light resistance, clogging resistance, and yellowing resistance, it is preferable for the above-mentioned compound expressed by General Formula 1 to be contained in the above-mentioned ink composition in an amount of at least 0.05 wt % and no more than 10 wt % with respect to the total amount of ink, with a range of at least 0.5 wt % and no more than 5 wt % being even better.
- From the standpoint of increasing the yellowing resistance of the printed matter, it is preferable if the compound expressed by General Formula 1 and compound A are present in a weight ratio (former/latter) of at least 1:25 and no more than 5:1, with at least 1:5 and no more than 3:1 being particularly favorable.
- In the above, the hydrazide compound is preferably a compound expressed by the general formula R5CXNHNR6R7 (where R5 is an alkyl group or aryl group; R6 and R7 are a hydrogen, alkyl group, or aryl group; and X is S or O), or the general formula R5SO2NHNR6R7 (where R5 is an alkyl group or aryl group; and R6 and R7 are a hydrogen, alkyl group, or aryl group), or the general formula R5NHCXNHNR6R7 (where R5 is an alkyl group or aryl group; R6 and R7 are a hydrogen, alkyl group, or aryl group; and X is S or O).
- The hydrazide compound may have two or more hydrazide structures per molecule.
- In the above, the tertiary amine compound is preferably a compound expressed by the general formula R5R6R7N (where R5, R6, and R7 are each a substitutable alkyl group, aryl group, or aralkyl group), or a substitutable cyclic tertiary amine.
- In the above, the inorganic salt is one or more inorganic salts selected from the group consisting of compounds expressed by MS2O4, MSO3, MS2O3, MPH2O2, and MPHO3 (where M is an alkali metal or alkaline earth metal).
- The inorganic salt is preferably a potassium salt or sodium salt.
- When compound A is selected from group I and used as an additive, it has the effect of giving the printed matter excellent light resistance, clogging resistance, and yellowing resistance, as well as improving the gas resistance of the printed matter.
- The above-mentioned ink composition may further comprise a penetrant and/or a humectant.
- The above constitution prevents the dimerization and quinonization of the phenol derivative, so the resulting printed matter has excellent light resistance and excellent yellowing resistance.
- In order to ensure sufficient ink absorption by the recording medium and obtain yellowing resistance, it is preferable for compound A to be contained in the above-mentioned recording medium of the present invention in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total weight of the above-mentioned ink receiving layer, with a range of at least 0.5 wt % and no more than 5 wt % being even better.
- In order to ensure sufficient ink absorption by the recording medium and obtain yellowing resistance, it is preferable for the compound expressed by General Formula 1 to be contained in the above-mentioned recording medium of the present invention in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total weight of the above-mentioned ink receiving layer, with a range of at least 0.5 wt % and no more than 5 wt % being even better.
- In order to ensure sufficient ink absorption by the recording medium and obtain yellowing resistance, it is preferable if the compound expressed by General Formula 1 and compound A are present in a weight ratio (former/latter) of at least 1:25 and no more than 5:1, with at least 1:5 and no more than 3:1 being particularly favorable.
- The ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of the above-mentioned ink composition as this ink composition.
- Also, the ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of the above-mentioned recording medium as this recording medium.
- The ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of the above-mentioned ink composition as this ink composition, and by the use of a recording medium in which an ink receiving layer is provided over a substrate, and which contains compound A in this ink receiving layer, as this recording medium.
- The ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of an ink composition containing a colorant, water, and compound A as this ink composition, and by the use of the above-mentioned recording medium as this recording medium.
- Using these recording methods makes it possible to obtain printed matter with excellent light resistance and excellent yellowing resistance.
- The inventors conducted further research on the basis of these inventions, and as a result discovered that printed matter with excellent light resistance, clogging resistance, and yellowing resistance is similarly obtained when the above-mentioned compound expressed by General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, is contained in the ink composition, and when at least one type of a specific compound A is contained in the recording medium.
- Specifically, the ink jet recording method of the present invention is characterized in that the ink composition comprises a colorant, water, and a compound expressed by the following General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, and the recording medium contains at least one type of compound A selected as desired from among the three groups numbered I to III above.
- The ink jet recording method of the present invention involves discharging droplets of an ink composition and causing these droplets to adhere to a recording medium, and is characterized by the use of an ink composition containing a colorant, water, and the above-mentioned compound expressed by the following General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, as this ink composition, and by the use of the above-mentioned recording medium as this recording medium.
- In order to ensure sufficient ink absorption by the recording medium and obtain yellowing resistance in the above-mentioned recording method of the present invention, it is preferable for compound A to be contained in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total weight of the above-mentioned ink receiving layer, with a range of at least 0.5 wt % and no more than 5 wt % being even better.
- In order to ensure sufficient ink absorption by the recording medium and obtain yellowing resistance in the above-mentioned recording method of the present invention, it is preferable the compound expressed by General Formula 1 to be contained in an amount of at least 0.05 wt % and no more than 10 wt % with respect to the total weight of the above-mentioned ink receiving layer, with a range of at least 0.5 wt % and no more than 5 wt % being even better. It is also preferable for the compound A content to be at least 0.01 wt % and no more than 10 wt %.
- Using these recording methods makes it possible to obtain printed matter with excellent light resistance and excellent yellowing resistance.
- Preferred embodiments of the ink composition of the present invention will now be described.
-
- (In General Formula 1, X is a hydrogen, oxy radical, hydroxyl group, alkyl group, alkenyl group, alkynyl group, aryl group, acyl group, sulfonyl group, sulfinyl group, alkoxy group, aryloxy group, or acyloxy group; R1, R2, R3, and R4 are each a hydrogen or alkyl group; Z is a group of nonmetal atoms necessary to complete a five- to seven-member ring; and any two groups out of R1 to R4 and Z may bond together to form a five- to seven-member ring.)
-
- (Where W is a —SO2NH2 group, —NHCOCH3 group, —CONH2 group, —C═NH(NH2) group, —NHC═NH(NH2) group, —SO3H group, sulfuric ester group, —P(O) (OH) (OR) , —P(O) (OR)2, carbamoyl group or salt thereof, salt of a carboxyl group, salt of an amino group, salt of a phenolic hydroxyl group, polyethylene glycol ether group, salt of —C═NH(NH2), or salt of —NHC═NH(NH2) (R is an alkyl group or aryl group); X is a hydrogen, oxy radical, hydroxyl group, alkyl group, alkenyl group, alkynyl group, aryl group, acyl group, sulfonyl group, sulfinyl group, alkoxy group, aryloxy group, or acyloxy group; R1, R2, R3, and R4 are each a hydrogen or alkyl group; Z is a group of nonmetal atoms necessary to complete a five- to seven-member ring; and any two groups out of R1 to R4 and Z may bond together to form a five- to seven-member ring.)
- Examples of the alkyl group expressed by X in General Formula 1 include a methyl group, ethyl group, n-propyl group, iso-propyl group, n-butyl group, tert-butyl group, n-octyl group, benzyl group, and hexadecyl group; examples of the alkenyl group include an aryl group and oleyl group; examples of the alkynyl group include an ethynyl group; examples of the aryl group include a phenyl group and naphthyl group; examples of the acyl group include an acetyl group, benzoyl group, and pentanoyl group; examples of the sulfonyl group include a methanesulfonyl group, benzenesulfonyl group, and toluenesulfonyl group; examples of the sulfinyl group include a methanesulfinyl group and benzenesulfinyl group; examples of the alkoxy group include a methyloxy group, ethyloxy group, i-propyloxy group, n-butyloxy group, cyclohexyloxy group, n-octyloxy group, 1-octyloxy group, and benzyloxy group; examples of the aryloxy group include a phenoxy group; and examples of the acyloxy group include an acetyloxy group and benzoyloxy group. All of these groups may have substituents, and examples of such substituents include a sulfonyl group, carboxyl group, and hydroxy group. It is particularly favorable for X to be an oxy radical.
- As mentioned above, R1, R2, R3, and R4 in General Formula 1 are each a hydrogen or alkyl group. This alkyl group is selected from the same set as the alkyl group expressed by the above-mentioned X. A methyl group is particularly favorable.
- It is preferable for Z in the compound expressed by General Formula 1 to be a group of nonmetal atoms necessary to complete a six-member ring.
-
- The compound expressed by General Formula 1 can be made by the methods discussed inJournal of Polymer Science, Part B: Polymer Physics, Vol. 25, 1299-1310 (1987), written by Kunihiro Hamada, Toshiro Iijima, and Ralph McGregor, and in Polymer, Vol. 29 (1), 93-98 (1988), written by Kunihiro Hamada, Toshiro Iijima, and Ralph McGregor, for example. In specific terms, the compound of Formula I-1 can be made by the first of the methods cited above, while the compound of Formula 1-2 can be made by the second of these methods.
-
- In the present invention, the compound expressed by General Formula 1 is preferably contained in the ink composition in an amount of at least 0.05 wt % and no more than 10 wt %, and more preferably in an amount of at least 0.1 wt % and no more than 5 wt %.
- Also, the ink composition pertaining to the present invention is characterized by comprising a colorant, water, a compound expressed by the following General Formula 1, and the above-mentioned compound A, wherein the weight reduction in the compound expressed by General Formula 1 after 1 hour at 60° C. is no more than 1%.
- Examples of hydrazide compounds include hydrazide (acyl hydrazide), thiocarbohydrazide, and derivatives of these.
- More specifically, it is preferable to use a compound expressed by the general formula R5CXNHNR6R7 (where R5 is an alkyl group or aryl group; R6 and R7 are a hydrogen, alkyl group, or aryl group; and X is S or O), or the general formula R5SO2NHNR6R7 (where R5 is an alkyl group or aryl group; and R6 and R7 are a hydrogen, alkyl group, or aryl group), or the general formula R5NHCXNHNR6R7 (where R5 is an alkyl group or aryl group; R6 and R7 are a hydrogen, alkyl group, or aryl group; and X is S or O).
- The yellowing resistance of the printed matter will be particularly good if the hydrazide compound has two or more hydrazide structures per molecule.
-
- It is preferable for the hydrazide compound to be contained in the ink composition in an amount of at least 0.01 wt % and no more than 10 wt %, with at least 0.1 wt % and no more than 5 wt % being particularly favorable. Adjusting to the preferred content markedly improves the yellowing resistance of the printed matter.
- In the present invention, it is preferable if the compound expressed by General Formula 1 and the hydrazide compound are present in a weight ratio (former/latter) of at least 1:25 and no more than 5:1, with at least 1:5 and no more than 3:1 being particularly favorable. Adjusting to the preferred weight ratio markedly improves the yellowing resistance of the printed matter.
- The tertiary amine compound is preferably a compound expressed by the general formula R5R6R7N (where R5, R6, and R7 are each a substitutable alkyl group, aryl group, or aralkyl group), or a substitutable cyclic tertiary amine.
- The compound expressed by the general formula R5R6R7N may be one in which R5, R6, and R7 are each individually a substitutable alkyl group, aryl group, or aralkyl group. Specific examples include triethanolamine, dimethylethanolamine, diethylethanolamine, butyldiethanolamine, methyldiethanolamine, triisopropanolamine, trimethylamine, triethylamine, tripropylamine, tributylamine, triallylamine, dimethylaniline, diethylaniline, tribenzylamine, triphenylamine, N,N-dimethylbenzylamine, N,N-dimethylphenethylamine, N,N-diethylbenzylamine, and derivatives of these. The yellowing resistance of the printed matter will be particularly good when R5, R6, and R7 are all hydroxyalkyl groups.
- Examples of the substitutable cyclic tertiary amine include 1,4-diazabicyclo[2.2.2]octane (DABCO), 1,8-diazabicyclo[5.4.0]-7-undecene (DBU), 1,5-diazabicyclo[4.3.0]-5-nonene (DBN), hexamethylenetetramine (HMTA), N-methylpiperidine, N-methylmorpholine, N-methylpyrrolidine, N-methylpyrrole, 2-methylpyridine, 2-ethylpyridine, 3-methylpyridine, 3-methylquinoline, and derivatives of these. The yellowing resistance of the printed matter will be particularly good when DABCO or HMTA is used.
- These tertiary amine compounds may be used singly or in combinations.
- The tertiary amine compound is preferably contained in the ink composition in an amount of at least 0.01 wt % and no more than 10 wt %, with at least 0.1 wt % and no more than 5 wt % being particularly favorable. Adjusting to the preferred content markedly improves the yellowing resistance of the printed matter.
- In the present invention, it is preferable if the compound expressed by General Formula 1 and the tertiary amine compound are present in a weight ratio (former/latter) of at least 1:25 and no more than 5:1, with at least 1:5 and no more than 3:1 being particularly favorable. Adjusting to the preferred weight ratio markedly improves the yellowing resistance of the printed matter.
- Examples of inorganic salts include one or more types selected from the group consisting of compounds expressed by MS2O4, MSO3, MS2O3, MPH2O2, and MPHO3 (where M is an alkali metal or alkaline earth metal). Potassium, sodium, and lithium are favorable as the alkali metal, and magnesium, calcium, and barium are favorable as the alkaline earth metal. It is particularly favorable for the inorganic salt of the present invention to be a potassium salt or sodium salt.
- Specific examples of inorganic salts include K2S2O4, Na2S2O4, Li2S2O4, MgS2O4, CaS2O4, BaS2O4, K2SO3, Na2SO3, Li2SO3, MgSO3, CaSO3, BaSO3, K2S2O3, Na2S2O3, Li2S2O3, MgS2O3, CaS2O3, BaS2O3, KPH2O2, NaPH2O2, LiPH2O2, Mg(PH2O2)2, Ca(PH2O2)2, Ba(PH2O2), K2PHO3, Na2PHO3, Li2PHO3, MgPHO3, CaPHO3, and BaPHO3. The yellowing resistance of the printed matter will be markedly improved when a potassium salt or sodium salt is used.
- These inorganic salts may be used singly or in combinations.
- The inorganic salt is preferably contained in the ink composition in an amount of at least 0.01 wt % and no more than 10 wt %, with at least 0.1 wt % and no more than 5 wt % being particularly favorable. Adjusting to the preferred content markedly improves the yellowing resistance of the printed matter.
- In the present invention, it is preferable if the compound expressed by General Formula 1 and the inorganic salt are present in a weight ratio (former/latter) of at least 1:25 and no more than 5:1, with at least 1:5 and no more than 3:1 being particularly favorable. Adjusting to the preferred weight ratio markedly improves the yellowing resistance of the printed matter.
- The compound expressed by General Formula 1 is preferably a compound having a water-soluble group W as mentioned above.
- Preferred embodiments, specific examples, and the manufacturing method of the compound expressed by General Formula 1 are the same as those discussed above.
- In the present invention, the compound expressed by General Formula 1 is preferably contained in the ink composition in an amount of at least 0.05 wt % and no more than 10 wt %, with at least 0.1 wt % and no more than 5 wt % being particularly favorable.
- A dye or pigment can be used as the colorant.
- The dye is preferably water-soluble, specific examples of which include those classified in the Color Index as acid dyes, direct dyes, catalyst dyes, reactive dyes, soluble vat dyes, sulfur dyes, and food colorings. Many of those dyes not listed in the Color Index can also be used favorably.
- Specific examples of these include C.I. Direct Black 17, 19, 32, 38, 51, 62, 71, 74, 75, 112, 117, 154, 163, and 168, C.I. Acid Black 7, 24, 26, 48, 52, 58, 60, 107, 109, 118, 119, 131, 140, 155, 156, and 187, C.I. Food Black 1 and 2, C.I. Reactive Black 5, C.I. Direct Yellow 11, 28, 33, 39, 44, 58, 86, 100, 132, 142, and 330, C.I. Acid Yellow 3, 19, 23, 25, 29, 38, 49, 59, 62, and 72, C.I. Basic Yellow 11 and 51, C.I. Disperse Yellow 3 and 5, C.I. Reactive Yellow 2, C.I. Direct Red 23, 79, 80, 83, 99, 220, 224, and 227, C.I. Acid Red 1, 8, 17, 18, 32, 35, 37, 42, 52, 57, 92, 115, 119, 131, 133, 134, 154, 186, 249, 254, and 256, C.I. Basic Red 14 and 39, C.I. Disperse Red 60, C.I. Direct Blue 6, 8, 15, 25, 71, 76, 80, 86, 90, 106, 108, 123, 163, 165, 168, 199, and 226, C.I. Acid Blue 9, 29, 40, 62, 74, 102, 104, 113, 117, 120, 175, and 183, C.I. Basic Blue 41, C.I. Reactive Blue 15, C.I. Direct Violet 47, 51, 90, and 94, and C.I. Acid Violet 11, 34, and 75.
- There are no particular restrictions on the pigment, which can be either an inorganic pigment or an organic pigment. Inorganic pigments that can be used include titanium oxide and iron oxide, as well as carbon black made by a known method such as a contact process, furnace process, or thermal process. The organic pigment can be an azo dye (including azo lake, insoluble azo pigments, condensed azo pigments, chelate azo pigments, and so forth), a polycyclic pigment (such as phthalocyanine pigments, perylene pigments, perinone pigments, anthraquinone pigments, quinacridone pigments, dioxazine pigments, thioindigo pigments, isoindolinone pigments, and quinophthalone pigments), a dye chelate (such as basic dye chelates and acid dye chelates), a nitro pigment, a nitroso pigment, aniline black, or the like.
- In particular, the carbon black used for black ink can be No. 2300, No. 900, MCF88, No. 33, No. 40, No. 45, No. 52, MA7, MA8, MA100, No. 2200B, or the like from Mitsubishi Chemical, Raven 5750, Raven 5250, Raven 5000, Raven 3500, Raven 1255, Raven 700, or the like from Colombia, Regal 400R, Regal 330R, Regal 1660R, Mogul L, Monarch 700, Monarch 800, Monarch 880, Monarch 900, Monarch 1000, Monarch 1100, Monarch 1300, Monarch 1400, or the like from Cabot, or Color Black FW1, Color Black FW2, Color Black FW2V, Color Black FW18, Color Black FW200, Color Black S150, Color Black S160, Color Black S170, Printex 35, Printex U, Printex V, Printex 140U, Special Black 6, Special Black 5, Special Black 4A, Special Black 4, or the like from Degussa.
- Examples of pigments used for yellow ink include C.I. Pigment Yellow 1, C.I. Pigment Yellow 2, C.I. Pigment Yellow 3, C.I. Pigment Yellow 12, C.I. Pigment Yellow 13, C.I. Pigment Yellow 14C, C.I. Pigment Yellow 16, C.I. Pigment Yellow 17, C.I. Pigment Yellow 73, C.I. Pigment Yellow 74, C.I. Pigment Yellow 75, C.I. Pigment Yellow 83, C.I. Pigment Yellow 93, C.I. Pigment Yellow 95, C.I. Pigment Yellow 97, C.I. Pigment Yellow 98, C.I. Pigment Yellow 119, C.I. Pigment Yellow 110, C.I. Pigment Yellow 114, C.I. Pigment Yellow 128, C.I. Pigment Yellow 129, C.I. Pigment Yellow 138, C.I. Pigment Yellow 150, C.I. Pigment Yellow 151, C.I. Pigment Yellow 154, C.I. Pigment Yellow 155, C.I. Pigment Yellow 180, and C.I. Pigment Yellow 185.
- Examples of pigments used for red ink include C.I. Pigment Red 5, C.I. Pigment Red 7, C.I. Pigment Red 12, C.I. Pigment Red 48 (Ca), Pigment Red 48 (Mu), Pigment Red 57 (Ca), C.I. Pigment Red 57:1, C.I. Pigment Red 112, C.I. Pigment Red 122, C.I. Pigment Red 123, C.I. Pigment Red 168, C.I. Pigment Red 184, and C.I. Pigment Red 202.
- Examples of pigments used for blue ink include C.I. Pigment Blue 1, C.I. Pigment Blue 2, C.I. Pigment Blue 3, C.I. Pigment Blue 15:3, C.I. Pigment Blue 15:34, C.I. Pigment Blue 15:4, C.I. Pigment Blue 16, C.I. Pigment Blue 22, C.I. Pigment Blue 60, C.I. Vat Blue 4, and C.I. Vat Blue 60.
- The colorant should be added to the ink composition in an amount of at least 0.1 wt % and no more than 20 wt %, with at least 0.5 wt % and no more than 10 wt % being even better. In the case of a pigment, the particle diameter should be no more than 10 μm, and preferably no more than 0.1 μm.
- Water is used as a solvent in the ink composition of the present invention. Ion exchange water, ultrafiltration water, reverse osmosis water, distilled water, or other such pure water or ultra-pure water can be used favorably for this water.
- The ink composition of the present invention may also contain a penetrant and/or a humectant.
- The penetrant can be any of a wide range of compounds that lower the surface tension of an ink, promote the penetration of the ink into the recording medium, and shorten the ink drying time. Examples include ethanol, propanol, isopropanol, butanol, pentanol, and other lower alcohols; ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, and other such cellosolves; diethylene glycol monobutyl ether, triethylene glycol monobutyl ether glycol ether, and other carbitols; and nonionic surfactants.
- The humectant can be any of a wide range of compounds that suppress the evaporation of water, keep the ink wet, and improve its discharge stability. Examples include ethylene glycol, propylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, polypropylene glycol, glycerol, diglycerol, 1,3-propanediol, 1,5-pentanediol, and other polyhydric alcohols; maltitol, maltose, sorbitol, and other sugars; trimethylolethane, trimethylolpropane, and other glycerol derivatives; ethylene carbonate and other carbonic esters; imidazole, 2-methylimidazole, and other imidazole derivatives; 2-pyridinol, 3-pyridinol, and other pyridinol derivatives; and urea.
- If needed, the ink composition of the present invention can further contain any auxiliaries commonly used in ink jet recording inks. Examples of such auxiliaries include pH regulators, chelating agents, preservatives, and rust inhibitors.
- The above constitution prevents the dimerization and quinonization of the phenol derivative, so the resulting printed matter has excellent light resistance and clogging resistance, as well as excellent yellowing resistance.
- A compound expressed by General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, will act effectively in the present invention when applied as an imparting liquid over the recording medium, either separately from the ink composition or by being added thereto.
- Also, in the present invention, a compound expressed by General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, and a hydrazide compound, a tertiary amine compound, or a specific inorganic salt will act effectively in the present invention when applied as an imparting liquid over the recording medium, either separately from the ink composition or by being added thereto.
- In this case, the imparting liquid can be produced from the same components as the above-mentioned ink composition, except for the colorant.
- Preferred embodiments of the recording medium pertaining to the present invention will now be described.
- An ink receiving layer comprising at least an ink absorbent pigment, an ink fixing agent, and a binder is known to allow the high-quality reproduction of color images, photographic images, and so on, and the ink receiving layer of the recording medium pertaining to the embodiments of the present invention contains a compound expressed by General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%.
- It is preferable for the compound expressed by General Formula 1 to be the same as that used in the above-mentioned ink composition.
- The compound expressed by General Formula 1 is preferably contained in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total dry weight of the ink receiving layer, with at least 0.1 wt % and no more than 5 wt % being particularly favorable.
- One or more types of known white pigment can be used as the ink absorbent pigment, examples of which include synthetic amorphous silica, colloidal silica, and other types of silica, and colloidal alumina.
- Other examples of white pigments besides silica and alumina include light calcium carbonate, heavy calcium carbonate, magnesium carbonate, kaolin, talc, calcium sulfate, barium sulfate, titanium dioxide, zinc oxide, zinc sulfide, zinc carbonate, titanium white, aluminum silicate, diatomaceous earth, calcium silicate, magnesium silicate, pseudo-boehmite, aluminum hydroxide, magnesium hydroxide, lithopone, zeolite, hydrated halloysite, and other such white inorganic pigments, and styrene-based plastic pigments, acrylic-based plastic pigments, polyethylene, melamine resin, urea resin, and other such organic pigments.
- These ink absorbent pigments are preferably contained in an amount of at least 30 wt % and no more than 90 wt % with respect to the total dry weight of the ink receiving layer, with a range of at least 40 wt % and no more than 80 wt % being particularly favorable.
- A cationic compound is particularly favorable as the ink fixing agent, examples of which include low-molecular weight compounds having primary to tertiary amine or quaternary ammonium bases, oligomers having these groups, and polymers having these groups. Specific examples include diallyl dimethyl ammonium chloride polymers, diallyl dimethyl ammonium chloride-sulfur dioxide copolymers, diallyl dimethyl ammonium chloride-acrylamide copolymers, and other such diallyl dimethyl ammonium salt polymers, diallylamine hydrochloride-sulfur dioxide copolymers, diallylmethylamine hydrochloride copolymers, polyallylamines, polyethyleneimines, polyethyleneimine quaternary ammonium salt compounds, (meth)acrylic acid alkyl ammonium salt polymers, (meth)acrylamide alkyl ammonium salt polymers, ionenes containing quaternary ammonium salts, and polyalkyleneamine dicyandiamide ammonium salt condensates.
- These ink fixing agents are preferably contained in an amount of at least 1 wt % and no more than 30 wt % with respect to the total dry weight of the ink receiving layer, with a range of at least 5 wt % and no more than 10 wt % being particularly favorable.
- Examples of binders include oxidized starch, etherified starch, phosphoric esterified starch, and other starch derivatives, carboxylmethyl cellulose, hydroxyethyl cellulose, and other cellulose derivatives, casein, gelatin, soy protein, polyvinyl alcohol and derivatives thereof, polyvinylpyrrolidone, maleic anhydride resin, styrene-butadiene copolymers, methyl methacrylate-butadiene copolymers, and other conjugated diene-based copolymer latexes, acrylic ester and methacrylic ester copolymers or acrylic polymers, and other acrylic polymer latexes, ethylene-vinyl acetate copolymers and other vinyl polymer latexes, functional group modified polymer latexes comprising carboxyl group and other such functional group-containing monomers of these various polymers, melamine resins, urea resins, and other thermosetting resins, and other such water-based adhesive agents, polymethyl methacrylate and other acrylic ester and methacrylic ester polymers and copolymers, polyurethane resins, unsaturated polyester resin, vinyl chloride-vinyl acetate copolymers, polyvinyl butyral, alkyd resins, and other such synthetic resin-based adhesive agents.
- These binders are preferably contained in an amount of at least 10 wt % and no more than 60 wt % with respect to the total dry weight of the ink receiving layer, with a range of at least 20 wt % and no more than 50 wt % being particularly favorable.
- If needed, the ink receiving layer may also contain various known additives, such as dye fixing agents (water resistance agents), fluorescent whiteners, surfactants, anti-foaming agents, pH regulators, mildewproofing agents, UV absorbents, and antioxidants.
- The structure of the ink receiving layer was described above, but it is particularly favorable for the percentage of void of the ink receiving layer to be set to between 30% and 80% by using silica or alumina as the main structural component of the ink receiving layer and adjusting the particle diameter of this silica or alumina, the amounts in which the other structural components are contained, and so forth. If the percentage of void is at least 30%, the recording medium will have particularly good ink absorbency, and keeping this percentage to 80% or lower ensures that the ink receiving layer will have sufficient strength.
- A sheet of paper or plastic is used as the substrate, which can be either translucent or opaque.
- A conventional substrate can be used, and specific examples of paper include paper composed of wood-pulp or non-wood-pulp raw material whose main component is natural cellulose fiber, while examples of plastic materials include polyester resins, diacetate resins, triacetate resins, acrylic resins, polycarbonate resins, polyvinyl chloride resins, polyimide resins, cellophane, and celluloid.
- The recording medium of the present invention can be favorably obtained by coating the above-mentioned substrate with a coating solution in which the above-mentioned structural components have been dissolved or dispersed in water or another suitable solvent, by roll coating, spray coating, rod bar coating, air knife coating, or another known coating method, and then drying this coating. A standard dryer can be used to dry the coating, and this drying is usually performed between 100 and 150° C.
- The above constitution gives printed matter with excellent image stability and light resistance, as well as excellent yellowing resistance.
- The ink receiving layer of the recording medium pertaining to another embodiment of the present invention contains a compound expressed by the following General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, and a hydrazide compound, tertiary amine compound, or specific inorganic salt.
- The compound expressed by General Formula 1, the hydrazide compound, the tertiary amine compound, and the inorganic salt are preferably the same as those used for the above-mentioned ink composition.
- The compound expressed by General Formula 1 is preferably contained in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total dry weight of the ink receiving layer, with a range of at least 0.1 wt % and no more than 5 wt % being particularly favorable.
- The hydrazide compound, tertiary amine compound, and inorganic salt are preferably contained in an amount of at least 0.01 wt % and no more than 10 wt % with respect to the total dry weight of the ink receiving layer, with a range of at least 0.1 wt % and no more than 5 wt % being particularly favorable. Adjusting to the preferred range markedly improves the yellowing resistance of the printed matter.
- In the present invention, it is preferable if the compound expressed by General Formula 1 and the hydrazide compound, tertiary amine compound, or inorganic salt are present in a weight ratio (former/latter) of at least 1:25 and no more than 5:1, with at least 1:5 and no more than 3:1 being particularly favorable. Adjusting to the preferred weight ratio markedly improves the yellowing resistance of the printed matter.
- The ink absorbent pigment, the ink absorbent pigment content, the ink fixing agent, the ink fixing agent content, the binder, the binder content, the additives, and other structural features of the ink receiving layer, and the method for manufacturing the recording medium and the substrate are preferably the same as described above.
- The ink jet recording method of the present invention will now be described.
- The ink jet recording method of the present invention allows printed matter with excellent light resistance and excellent yellowing resistance to be obtained by performing ink jet recording using the above-mentioned ink composition and/or recording medium.
- Furthermore, with the ink jet recording method of the present invention, printed matter with sufficient light resistance and excellent yellowing resistance can be obtained when the ink composition contains a colorant, water, and a compound expressed by the following General Formula 1, whose weight reduction after 1 hour at 60° C. is no more than 1%, and when the recording medium contains a hydrazide compound, a tertiary amine compound, or a specific inorganic salt.
- The present invention will now be described in more specific terms through examples, but is not limited in any way by these examples.
- The various component combinations shown in Table 1 were stirred for 30 minutes at normal temperature, after which each mixture was passed through a 1 μm membrane filter to obtain various ink compositions.
- The weight reduction in the compound expressed by General Formula 1 was measured by the following method for each of the ink compositions shown in Table 1.
- Method for measuring weight reduction: Using a thermobalance is a standard and simple way of measuring weight reduction. Nitrogen or dry air was used for the atmosphere during the use of the thermobalance. The temperature was steadily raised from room temperature, and held for 1 hour at 60° C. The heating rate is generally 1 to 10° C. per minute, and in these examples the measurements were made under a dry air environment and at a heating rate of 5° C. per minute.
TABLE 1 Ink composition No. 1 2 3 4 5 6 Colorant C.I. Direct Red 3 2 249 C.I. Direct Yellow 4 4 132 C.I. Direct Yellow 2.5 2.5 86 Compound expressed by General Formula 1 Form. 1-1 compound 0.5 7 (weight red.: −0.2%) Form. 1-2 compound 0.1 5 (weight red.: −0.2%) [compound 7] 0.1 compnd. (weight red.: −1.2%) Penetrant, etc. glycerol 10 3 triethylene glycol 5 25 25 1,5-pentanediol 3 5 3 5 ethylene glycol 15 20 15 Olfine E1010 1 2 2 (Nissin Chemical Industry Co., Ltd.) Olfine STG (Nissin 1 1 1 Chemical Industry Co., Ltd.) diethylene glycol 10 monobutyl ether triethylene glycol 8 10 8 monobutyl ether propylene glycol 5 5 monomethyl ether Preservative Proxel XL-2 0.3 0.3 0.3 0.3 0.3 0.3 (Avecia) Water bal. bal. bal. bal. bal. bal. - Each of the above ink compositions was put into a special cartridge for an ink jet printer (PM800C, made by Seiko Epson) and printed onto a special ink jet recording medium (Premium Glossy Photo Paper, made by Seiko Epson). This product was left for one day at normal temperature and humidity away from direct light, after which the light resistance of the printed matter was evaluated under the following conditions.
- First, optical irradiation was performed using a xenon weatherometer (Ci5000, made by Atlas), with the printed matter being exposed with a black panel at 35° C., a relative humidity of 60%, and a 340 nm UV light emission of 0.18 W/m2. The irradiation conditions comprised either 180 kJ/m2 (278 hours of optical irradiation under the above conditions) or 360 kJ/m2 (556 hours of optical irradiation under the above conditions).
- After irradiation, the reflection intensity of the various color components of the printed matter was measured using a spectrophotometer (Gretag SPM, made by Gretag). The conditions here comprised a D50 light source, no light source filter, a white standard of absolute white, and a field angle of 2°. Intensity retention was evaluated from the following criteria.
- A: at least 90% of the initial value
- B: at least 80% but less than 90% of the initial value
- C: less than 80% of the initial value
- An ink cartridge filled with ink composition was installed in the above-mentioned printer, and after it was confirmed that the ink composition was initially discharging normally, the power was shut off to the printer, and the ink cartridge was left installed for a period of one to 12 months at a temperature of 40° C. and a relative humidity of 20%. After the specified time had elapsed, the printer was moved to a normal temperature environment, and after the housing temperature had dropped to normal temperature, the power was turned back on and printing was performed again, and the number of resets that had to be performed until the same quality was obtained as before the test was counted. The evaluation was made according to the following criteria.
- A: The same print quality as at the outset was obtained with zero to two resets.
- B: The same print quality as at the outset was obtained with three to five resets.
- C: The same print quality as at the outset was not obtained with six or more resets.
- [A special ink jet recording medium] (Premium Glossy Photo Paper, made by Seiko Epson) was printed by the same method as in the light resistance test.
- The printed matter thus obtained was then put into a clear plastic folder (CL-A420, made by Mitsubishi Pencil) and stored for a period of three days to one month at a temperature of 40° C. and a relative humidity of 20%. After the specified time had elapsed, the printed matter was taken out of its plastic folder and visually checked according to the following criteria for discoloration in the non-printed portions and for color change in the printed portions and the surrounding areas.
- A: No yellowing whatsoever; good.
- B: Very slight yellowing noted, but not enough to pose a problem in terms of image quality.
- C: The printed portions and their surroundings had yellowed.
- Table 2 gives the results of the various tests conducted using the above-mentioned ink compositions 1 to 6.
TABLE 2 Ink composition No. 1 2 3 4 5 6 Example/ Ex. Ex. Ex. Ex. CE CE Comparative Example No. 1 2 3 4 1 2 Light 180 kJ/m2 A A A A A C resistance 360 kJ/m2 A B A A B C test Clogging test 1 month A A A A A A (40° C., 20% RH) 3 months A B A A B A 6 months A B B A B B 12 months A B B B B B Folder 3 days A A A A A A yellowing 7 days A A A A B A test 14 days A A B B B A (40° C., 20% RH) 28 days B A B B C A - As is clear from Table 2, in Examples 1 to 4, which featured the use of an ink composition containing a compound expressed by General Formula 1, whose weight reduction after 1 hour at 60° C. was no more than 1 wt %, the results were all satisfactory for light resistance, clogging resistance, and folder yellowing resistance, whereas Comparative Examples 1 and 2 were unsatisfactory in all of these categories.
- Wood-free paper with a basis weight of 100 g/m2 was used as a substrate, and this substrate was coated with a coating solution comprising a mixture of water and the ink receiving layer components listed in Table 3 ({weight of ink receiving layer components}: {weight of water}=20:80) in an amount of 15 g/m2. This was followed by drying for 2 minutes at 130° C. using a dryer, which produced recording media A to D.
TABLE 3 Recording medium A B C D Compound of Form. 1-1 compound 0.5 General (weight reduction: −0.2%) Formula 1 Form. 1-2 compound 4 (weight reduction: −0.2%) [compound 7] compound 0.5 (weight reduction: −1.2%) Ink absorbent Silica Gel P78D (made by 60 pigment Mizusawa Chemical Industries) Ink fixing diallyl methyl ammonium 9 agent chloride-sulfur dioxide copolymer, PAS-A (made by Nitto Boseki) Binder polyvinyl alcohol, CM318 balance (degree of polymerization: 1800; made by Kuraray) - The above-mentioned ink compositions and recording media were variously combined as shown in Table 4, printing was performed, and a light resistance test and yellowing resistance test were conducted by the same methods as above. The results of these tests are given in Table 4.
TABLE 4 Ink composition No. 6 Recording medium A B C D Example/ Ex. Ex. C.E. C.E. Comparative Example No. 5 6 3 4 Light 180 kJ/m2 A A A C resistance 360 kJ/m2 B A B C test Folder 3 days A A A A yellowing 7 days A A B A test 14 days A A B A 28 days A B C A - As is clear from Table 4, in Examples 5 and 6, in which either the ink composition or the recording medium contained a compound expressed by General Formula 1, whose weight reduction after 1 hour at 60° C. was no more than 1 wt %, the results were all satisfactory for light resistance, clogging resistance, and folder yellowing resistance, whereas Comparative Examples 3 and 4 were unsatisfactory in all of these categories.
- The various components shown in Tables 5 and 6 were stirred for 30 minutes at normal temperature, after which the system was passed through a 1 μm membrane filter to obtain various ink compositions.
- The weight reduction in the compound expressed by General Formula 1 was measured by the following method for each of the ink compositions shown in Tables 5 and 6.
- Method for measuring weight reduction: Using a thermobalance is a standard and simple way of measuring weight reduction. Nitrogen or dry air was used for the atmosphere during the use of the thermobalance. The temperature was steadily raised from room temperature, and held for 1 hour at 60° C. The heating rate is generally 1 to 10° C. per minute, and in these examples the measurements were made under a dry air environment and at a heating rate of 5° C. per minute.
TABLE 5 Ink composition No. 1 2 3 4 5 6 7 8 9 10 11 12 Colorant C.I. Direct Red 249 2 3 3 C.I. Direct Yellow 4 3 4 4 132 C.I. Direct Yellow 2.5 2.5 2.5 86 Compound expressed by Form. 1-1 compound 0.5 0.1 0.5 0.1 0.5 0.1 General Formula 1 (weight red.: −0.2%) Form. 1-2 compound 0.4 8 4 0.4 (weight red.: −0.2%) [compound 10] compnd. (weight red.: −1.2%) Additiv Hydrazide compounds Form. 3-3 compound 2 10 Form. 3-4 compound 2 Form. 3-11 compound 0.1 0.1 Form. 3-13 compound 4 Tertiary amine 1,4-diazabicyclo[2.2.2] 2 1 0.1 compounds octane (DABCO) hexamethylene tetramine 1 (HMTA) In potassium sulfite or (K2SO3) lithium thiosulfate (Li2S2O3) potassium hypophosphite (KPH2O2) sodium phosphite (Na2PHO3) Penetrant, etc. glycerol 13 2 8 13 13 12 triethylene glycol 30 10 2 30 26 1,5-pentanediol 4 4 5 ethylene glycol 14 14 13 Olfine E1010 (Nissin 1 2 1 1 2 1 1 2 Chemical Industry Co., Ltd.) Olfine STG (Nissin 1 0.5 1 1 Chemical Industry Co., Ltd.) diethylene glycol 10 9 10 10 9 monobutyl ether triethylene glycol 8 10 8 10 monobutyl ether propylene glycol 5 5 5 mononothyl ether Preservative Proxel XL-2 (Avecia) 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Water B B B B B B B B B B B B -
TABLE 6 Ink composition No. 13 14 15 16 17 18 19 20 21 22 23 24 Colorant C.I. Direct Red 249 2 3 2 3 C.I. Direct Yellow 3 4 3 4 4 132 C.I. Direct Yellow 2.5 2.5 2.5 86 Compound expressed by Form. 1-1 compound 0.5 0.1 0.5 General Formula 1 (weight red.: −0.2%) Form. 1-2 compound 8 4 0.4 8 4 (weight red.: −0.2%) [compound 10] compnd. 0.1 0.1 (weight red.: −1.2%) Additiv Hydrazide compounds Form. 3-3 compound 2 1 Form. 3-4 compound Form. 3-11 compound Form. 3-13 compound Tertiary amine 1,4-diazabicyclo[2.2. 10 0.1 compounds 2]octane (DABCO) hexamethylene 4 tetramine (HMTA) Inorganic potassium sulfite 2 (K2SO3) lithium thiosulfate 2 0.1 0.1 1 (Li2S2O3) potassium 4 hypophosphite (KPH2O2) sodium phosphite 10 (Na2PHO3) Penetrant, etc. glycerol 5 2 12 5 2 5 12 triethylene glycol 10 26 10 25 30 1,5-pentanediol 5 6 3 ethylene glycol 8 13 13 7 13 Olfine E1010 (Nissin 0.5 2 1 0.5 2 2 2 2 1 Chemical) Olfine STG (Nissin 2 2 1.5 Chemical) diethylene glycol 10 10 9 10 monobutyl ether triethylene glycol 10 10 10 8 8 monobutyl ether propylene glycol 5 6 6 mononothyl ether Preservative Proxel XL-2 (Avecia) 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 Water B B B B B B B B B B B B - Each of the above ink compositions was put into a special cartridge for an ink jet printer (PM800C, made by Seiko Epson) and printed onto a special ink jet recording medium (PM photographic paper, made by Seiko Epson). This product was left for one day at normal temperature and humidity away from direct light, after which the light resistance of the printed matter was evaluated under the following conditions.
- First, optical irradiation was performed using a xenon weatherometer (Ci5000, made by Atlas), with the printed matter being exposed with a black panel at 35° C., a relative humidity of 60%, and a 340 nm UV light emission of 0.18 W/m2. The irradiation conditions comprised either 180 kJ/m2 (278 hours of optical irradiation under the above conditions) or 360 kJ/m2 (556 hours of optical irradiation under the above conditions).
- After irradiation, the reflection intensity of the various color components of the printed matter was measured using a spectrophotometer (Gretag SPM, made by Gretag). The conditions here comprised a D50 light source, no light source filter, a white standard of absolute white, and a field angle of 2°. Intensity retention was evaluated from the following criteria.
- A: at least 90% of the initial value
- B: at least 80% but less than 90% of the initial value
- C: less than 80% of the initial value
- An ink cartridge filled with ink composition was installed in the above-mentioned printer, and after it was confirmed that the ink composition was initially discharging normally, the power was shut off to the printer, and the ink cartridge was left installed for a period of one to 12 months at a temperature of 40° C. and a relative humidity of 20%. After the specified time had elapsed, the printer was moved to a normal temperature environment, and after the housing temperature had dropped to normal temperature, the power was turned back on and printing was performed again, and the number of resets that had to be performed until the same quality was obtained as before the test was counted. The evaluation was made according to the following criteria.
- A: The same print quality as at the outset was obtained with zero to two resets.
- B: The same print quality as at the outset was obtained with three to five resets.
- C: The same print quality as at the outset was not obtained with six or more resets.
- A special ink jet recording medium (Premium Glossy Photo Paper, made by Seiko Epson) was printed by the same method as in the light resistance test.
- The printed matter thus obtained was then put into a clear plastic file (CL-A420, made by Mitsubishi Pencil) and stored for a period of three days to one month at a temperature of 60° C. and a relative humidity of 20%. After the specified time had elapsed, the printed matter was taken out of its plastic folder and visually checked according to the following criteria for color change in the non-printed portions and for discoloration in the printed portions and the surrounding areas.
- A: No yellowing whatsoever; good.
- B: Very slight yellowing noted, but not enough to pose a problem in terms of image quality.
- C: The printed portions and their surroundings had yellowed.
- Tables 7 and 8 give the results of the various tests conducted using the above-mentioned ink compositions 1 to 24.
TABLE 7 Ink composition No. 1 2 3 4 5 6 7 8 9 10 11 12 Example/Comparative Ex Ex Ex Ex Ex CE CE CE CE Ex Ex Ex Example No. 7 8 9 10 11 5 6 7 8 12 13 14 Ratio of compound of 1:4 1:20 4:1 2:1 1:2.5 — — — — 1:4 1:20 4:1 General Formula 1 and additive Light 180 kJ/m2 A A A A A A A C C A A A resistance 360 kJ/m2 A B B A A A B C C A B B test Clogging one month A A A A A A A A A A A A resistance three A B A A A A B A A A B A test (40° C., months 20% RH) six A B B B A A B A B A B B months 12 months A B B B B A B A B A B B Folder three A A B A A A A A A A A B yellowing days test (60° C., seven A A B B A B B A A B B B 20% RH) days 14 days B A B B B C B A A B B B 28 days B B B B B C C A A B B B -
TABLE 8 Ink composition No. 13 14 15 16 17 18 19 20 21 22 23 24 Example/Comparative Ex Ex CE Ex Ex Ex Ex Ex CE CE CE Ex Example No. 15 16 9 17 18 19 20 21 10 11 12 22 Ratio of compound of 2:1 1:2.5 — 1:4 1:20 4:1 2:1 1:2.5 — — 1:20 1:4 General Formula 1 and additive Light resist- 180 kJ/m2 A A C A A A A A C A A A ance test 360 kJ/m2 A A C A B B A A C B B A Clogging one month A A A A A A A A A A A A resistance three A A A A A A A A A B B A test (40° C., months 20% RH) six months B A B A A B B A B B B A 12 months B B B A B B B B B B B A Folder three days B A A A A B A A A B A A yellowing seven days B B A A A B B A A C B A test (60° C., 14 days B B A B B B B B A C C B 20% PH) 28 days B B A B B B B B A C C B - As is clear from Tables 7 and 8, light resistance, clogging resistance, and folder yellowing resistance could not all be satisfied with Comparative Examples 5 to 12, whereas the results were satisfactory for all of these with Examples7 to 22.
- Wood-free paper with a basis weight of 100 g/m2 was used as a substrate, and this substrate was coated with a coating solution comprising a mixture of water and the ink receiving layer components listed in Table 9 ({weight of ink receiving layer components}: [weight of water}=20:80) in an amount of 15 g/m2. This was followed by drying[8] for 2 minutes at 130° C. using a dryer, which produced recording media A to P.
TABLE 9 Recording medium A B C D E F G H I J K L M N O P Compound of General Formula 1 Form. 1-1 compound 0.5 4 0.5 4 0.5 4 (weight reduction: −0.2%) Form. 1-2 compound 0.5 4 (weight reduction: −0.2%) [compound 7] compound 0.5 (weight reduction: −1.2%) Hydrazine Compounds Form. 3-4 compound 0.5 4 1 4 4 Tertiary Amine Compounds 1,4-diazabicyclo[2.2.2]octane 0.5 0.5 (DABCO) hexamethylene tetramine (HMTA) 4 4 Inorganic Salts sodium phosphite (Na2PHO3) 0.5 0.5 4 potassium hypophosphite (KPH2O2) 4 4 Ink absorbent Silica Gel P78D (trade name of Mizusawa Chemical 60 pigment Industries) Ink fixing agent diallyl methyl ammonium chloride-sulfur dioxide 9 copolymer, PAS-A (trade name of Nitto Boseki) Binder polyvinyl alcohol, CM318 (degree of polymer- balance ization: 1800; trade name of Kuraray) - The above-mentioned ink compositions and recording media were variously combined as shown in Tables 10 and 11, printing was performed, and a light resistance test and yellowing resistance test were conducted by the same methods as above. The results of these tests are given in Tables 10 and 11.
TABLE 10 Ink composition No. 1 6 8 Recording medium A C E F H E B D E N O P Example/Comparative Ex Ex Ex Ex Ex CE Ex CE CE CE CE Ex Example No. 23 24 25 26 27 13 28 14 15 16 17 29 Light 180 A A A A A A A C C A A A resistance kJ/m2 test 360 B B B B B B A C C B B A kJ/m2 Folder 3 days A A A B A B A A A A B A yellow- 7 days A A A B B B A A A B C B ing 14 days A A A B B C B A A C C B resistance 28 days B A A B B C B A A C C B test (60° C., 20% RH) -
TABLE 1 Ink composition No. 9 10 21 Recording medium G I E J L E K M E Example/Comparative Ex CE CE Ex Ex CE Ex CE CE Example No. 30 18 19 31 32 20 33 21 22 Light resist- 180 A C C A A A A C C ance test kJ/m2 360 A C C B B B A C C kJ/m2 Folder 3 days A A A A A B A A A yellow- 7 days B A A B B B B A A ing 14 days B A A B B C B A A resistance 28 days B A A B B C B A A test (60° C., 20% RH) - As is clear from Tables 10 and 11, light resistance, clogging resistance, and folder yellowing resistance could not all be satisfied with Comparative Examples 13 to 22, whereas the results were satisfactory for all of these with Examples 23 to 33.
- With the ink composition and recording medium of the present invention, and with the ink jet recording method of the present invention, it is possible to obtain a high-quality image with excellent light resistance of the printed matter, with no clogging, and with excellent yellowing resistance of the printed matter.
- Furthermore, the printed matter of the present invention has excellent light resistance of the recorded images, as well as excellent yellowing resistance.
Claims (45)
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JP2001102707A JP3857065B2 (en) | 2001-03-30 | 2001-03-30 | Ink composition, recording medium, ink jet recording method, and recorded matter |
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JP2001102705A JP3854088B2 (en) | 2001-03-30 | 2001-03-30 | Ink composition, recording medium, ink jet recording method, and recorded matter |
JP2001-102705 | 2001-03-30 |
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EP (1) | EP1245651B1 (en) |
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US20030010253A1 (en) * | 2001-03-30 | 2003-01-16 | Seiko Epson Corporation | Ink composition, ink jet recording method and recorded matter |
US20030097959A1 (en) * | 2001-04-12 | 2003-05-29 | Tadashi Omatsu | Ink compositions for inkjet recording |
US20040074417A1 (en) * | 2001-01-16 | 2004-04-22 | Stephane Biry | Ink-jet ink and recording material |
US20040126510A1 (en) * | 2002-12-20 | 2004-07-01 | Wood Mervin G. | Ink jet ink and recording material |
US20040134382A1 (en) * | 2001-03-03 | 2004-07-15 | Paul Wight | Ink jet printing composition comprising a dye containing hydrazine or hydrazide |
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CN1267510C (en) | 2006-08-02 |
US7018455B2 (en) | 2006-03-28 |
DE60230557D1 (en) | 2009-02-12 |
EP1245651B1 (en) | 2008-12-31 |
CN1385479A (en) | 2002-12-18 |
EP1245651A3 (en) | 2002-12-11 |
EP1245651A2 (en) | 2002-10-02 |
ATE419314T1 (en) | 2009-01-15 |
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